The Indian River Lagoon is one of the most remarkable bodies of water in the United States — a 156-mile estuary running along Florida's Atlantic coast from Ponce de León Inlet in Volusia County south to Jupiter Inlet in Palm Beach County. It is the most biodiverse estuary in North America, home to more than 4,400 species of plants and animals, including over 1,000 resident bottlenose dolphins that never migrate. If you're visiting the Treasure Coast — Fort Pierce, Jensen Beach, Sebastian, Port St. Lucie, or Vero Beach — you're already on the edge of one of the natural wonders of the American Southeast. Salty's Water Sports, the only water sports company in St. Lucie County with 5 lagoon locations and 500+ five-star reviews, puts you directly on this extraordinary waterway with jet ski rentals, dolphin tours, boat rentals, and sunset cruises.
Despite its name, the Indian River Lagoon is not a river. It is a bar-built estuary — a shallow coastal lagoon separated from the Atlantic Ocean by a narrow barrier island (Hutchinson Island and its northern and southern extensions). The lagoon is formed by three interconnected water bodies: the Indian River, the Banana River, and the Mosquito Lagoon. Together they form a continuous 156-mile waterway that makes up approximately 40% of Florida's east coast.
The lagoon is remarkably shallow — averaging just 4 feet deep across most of its width, with a maximum depth of about 9 feet in the dredged channels. Its width varies from half a mile to 5 miles. This shallow, warm, protected environment is what makes it so extraordinarily productive as a nursery for marine life. The seagrass beds that carpet the lagoon floor are among the most extensive in Florida, providing food and shelter for hundreds of species at every stage of their life cycle.
The lagoon is connected to the Atlantic Ocean through a series of inlets — the Fort Pierce Inlet, the St. Lucie Inlet near Jensen Beach, Sebastian Inlet, and others — that allow tidal exchange and the movement of marine species in and out of the lagoon. These inlets are among the most productive fishing and wildlife-viewing spots on the Treasure Coast, as fish and dolphins concentrate near the tidal flow.
The Indian River Lagoon sits at a unique biogeographic crossroads — the transition zone between the temperate and subtropical climate regions of Florida. This means it supports both cold-tolerant species from the north and tropical species from the south, resulting in an extraordinary overlap of biodiversity that is found nowhere else in North America.
The lagoon's productivity is driven by its seagrass meadows, mangrove forests, and salt marshes — three of the most biologically productive ecosystems on earth. Seagrass beds cover an estimated 60,000 acres of the lagoon floor and support the entire food web, from microscopic invertebrates to manatees, sea turtles, and dolphins. The mangrove forests along the lagoon's western shore provide nesting habitat for over 300 species of birds and nursery habitat for juvenile fish. The salt marshes filter runoff from the mainland and provide feeding grounds for wading birds.
The numbers are staggering: 4,400+ species of plants and animals, 700+ species of fish, 300+ species of birds, 36 species of protected plants, and more than 50 threatened or endangered species. The lagoon supports the largest population of West Indian manatees in the world during winter months, when warm water from natural springs and power plant outflows draws manatees from across Florida. It is also home to the largest population of nesting loggerhead sea turtles in the Western Hemisphere — the beaches of the Treasure Coast see tens of thousands of loggerhead nests each year.
The Indian River Lagoon is home to one of the most studied and most accessible wild dolphin populations in the world. Over 1,000 bottlenose dolphins are permanent residents of the lagoon — they are born here, live here, and die here, never migrating to the open ocean. These are not trained dolphins or animals in captivity; they are fully wild, living their natural lives in the lagoon's shallow waters.
The Treasure Coast section of the lagoon — from Fort Pierce south through Jensen Beach and Stuart — is particularly rich in dolphins because it contains the primary dolphin nursery of the region. Female dolphins bring their calves to the shallow, protected waters of the lagoon to nurse and teach them to hunt. Pods of 5–15 dolphins are commonly seen working together to herd fish against the mangrove shoreline, a cooperative hunting behavior called "strand feeding" that is unique to this population.
Salty's Water Sports has built its reputation on these dolphins. With a 95% dolphin sighting rate across all guided tours, Salty's USCG-licensed captains know exactly where the pods are on any given day — the result of years of experience on the lagoon and genuine relationships with the resident dolphin families. The Jet Ski Dolphin Tour and Dolphin Boat Tour are the most popular experiences on the Treasure Coast precisely because the sighting rate is so high and the encounters are so close.
Dolphins are the headline act, but the Indian River Lagoon's supporting cast is equally remarkable. West Indian manatees — Florida's most iconic marine mammal — are present in the lagoon year-round, with peak concentrations from November through March when cooler ocean temperatures push manatees into the lagoon's warmer waters. The lagoon's seagrass beds provide the manatees' primary food source, and the shallow, calm waters make the lagoon ideal manatee habitat. On a typical winter boat rental or dolphin tour from Salty's, manatee sightings are nearly as common as dolphin sightings.
Loggerhead sea turtles are frequently seen in the lagoon during summer months, particularly near the Fort Pierce Inlet where they feed on blue crabs and other invertebrates. Green sea turtles and leatherback sea turtles are also occasionally spotted. The nesting beaches on Hutchinson Island — accessible by boat from Salty's Fort Pierce location — are among the most active loggerhead nesting beaches in the world from May through October.
The lagoon's birdlife is extraordinary. Brown pelicans, double-crested cormorants, ospreys, bald eagles, roseate spoonbills, great blue herons, great egrets, snowy egrets, tricolored herons, and reddish egrets are all common sights along the mangrove shoreline. During winter, the lagoon hosts large concentrations of migratory shorebirds and waterfowl. The Fort Pierce Inlet State Park and the Pelican Island National Wildlife Refuge (near Sebastian) are the best birding locations on the Treasure Coast.
The Indian River Lagoon is one of the best water sports environments on Florida's east coast — calm, warm, shallow, and extraordinarily scenic. The absence of ocean swell and significant current makes it ideal for beginners and families, while the wildlife, the miles of open water, and the varied terrain of mangrove channels, open bays, and tidal inlets keep it endlessly interesting for experienced water sports enthusiasts.
Jet skiing on the lagoon is a completely different experience from ocean jet skiing. The calm, flat water lets you focus on the scenery and the wildlife rather than fighting waves. Salty's fleet of Sea-Doo GTX models — the most stable and comfortable jet skis on the market — are purpose-built for lagoon conditions, with a wide, stable hull, a comfortable seat for two riders, and enough power to cover miles of open water in a single session. The GTX's intelligent braking system and smooth throttle response make it the right choice for first-timers and experienced riders alike.
Dolphin tours are the most popular guided experience on the lagoon. Salty's offers both a Jet Ski Dolphin Tour — where you ride alongside the dolphins on your own Sea-Doo — and a Dolphin Boat Tour, where a USCG-licensed naturalist guide takes you through the dolphin nursery on a private pontoon boat. Both tours have a 95% dolphin sighting rate and are available from Fort Pierce, Jensen Beach, Sebastian, and Port St. Lucie.
Boat rentals give you the freedom to explore the lagoon at your own pace — anchoring at sandbars, fishing the mangrove edges, or simply drifting through the open water watching for wildlife. Sunset cruises on the lagoon are among the most romantic experiences on the Treasure Coast — the lagoon's wide, open horizon and the warm Florida light make for spectacular sunsets, often with dolphins feeding in the foreground.
The Indian River Lagoon faces serious environmental pressures. Nutrient pollution from agricultural runoff, stormwater discharge, and septic systems has fueled repeated algal blooms that have devastated the lagoon's seagrass beds. The 2011 "superbloom" of brown algae killed approximately 47,000 acres of seagrass — nearly 60% of the lagoon's total seagrass coverage — triggering a cascade of ecological consequences including mass die-offs of manatees, pelicans, and other wildlife that depend on the seagrass ecosystem.
Recovery has been slow but measurable. The 2025 Indian River Lagoon Report noted general stability across most of the lagoon's five basins, with water quality holding steady and seagrass showing signs of recovery in some areas. Restoration efforts led by the Indian River Lagoon National Estuary Program include clam outplanting (21 million clams to filter the water), shoreline restoration, and oyster reef construction. The St. Johns River Water Management District and the South Florida Water Management District have invested hundreds of millions of dollars in nutrient reduction projects.
When you visit the lagoon — whether on a jet ski, a boat rental, or a dolphin tour — you're participating in the local economy that makes conservation of the lagoon economically viable. Salty's Water Sports is committed to responsible operation on the lagoon: all guides are briefed on manatee protection zones, no-wake areas, and wildlife interaction guidelines. The 95% dolphin sighting rate is a product of knowing where the dolphins are without disturbing them.
Salty's Water Sports is the only water sports company in St. Lucie County, with 5 locations across the Treasure Coast: Fort Pierce, Jensen Beach, Sebastian, Port St. Lucie, and Vero Beach. Every experience — jet ski rentals, dolphin tours, boat rentals, sunset cruises — is operated by USCG-licensed captains with deep knowledge of the lagoon and its wildlife. The Sea-Doo GTX fleet is the newest and most capable on the water.
Book online at saltyswatersports.com or call (772) 448-4516. Morning departures offer the calmest water and the best wildlife sighting rates. Weekend and holiday slots fill fast in season — book in advance.
The Indian River Lagoon is a 156-mile bar-built estuary running along Florida's Atlantic coast from Ponce de León Inlet in Volusia County to Jupiter Inlet in Palm Beach County. It is the most biodiverse estuary in North America, home to over 4,400 species of plants and animals. The lagoon passes through Brevard, Indian River, St. Lucie, Martin, and Palm Beach counties, with the Treasure Coast section — Fort Pierce, Jensen Beach, Sebastian, and Port St. Lucie — offering the best access to wildlife and water sports.
Yes — swimming is permitted in most areas of the Indian River Lagoon, and the calm, warm, shallow water makes it ideal for families. The best swimming spots are the sandbars in the open lagoon sections and the beaches on the barrier island (Hutchinson Island) accessible by boat. Water quality varies by location and season — check current conditions with the Florida Department of Health before swimming. Manatee protection zones require swimmers to stay still and not approach manatees if they are present.
The Indian River Lagoon supports over 4,400 species of plants and animals. The most commonly seen wildlife includes bottlenose dolphins (1,000+ permanent residents), West Indian manatees (especially November–March), loggerhead sea turtles, brown pelicans, ospreys, bald eagles, roseate spoonbills, great blue herons, and hundreds of species of fish. Salty's Water Sports guided dolphin tours have a 95% dolphin sighting rate, and manatee sightings are common on most morning tours from October through April.
The best way to experience the Indian River Lagoon is on the water — either on a guided dolphin tour (highest wildlife sighting rates, expert narration from USCG-licensed captains), a self-guided boat rental (maximum freedom and flexibility), or a jet ski rental (covers the most distance in the least time). Salty's Water Sports offers all three from 5 Treasure Coast locations. Morning departures are recommended for the calmest water and the best wildlife activity. Book at saltyswatersports.com or call (772) 448-4516.
Choose your Salty's experience, select the most convenient launch location, and reserve online. Questions? Call (772) 448-4516.