Park & nature
Rio Negro–Rio San Sun mangroves
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The Rio Negro–Rio San Sun mangroves form a labyrinth of tidal channels and dense mangrove forest on Tortuguero's northern edge. Boat tours navigate these narrow waterways, passing under arching roots where caimans, river otters, and green iguanas rest. The mangroves are a nursery for fish and crustaceans, and birdlife includes herons, kingfishers, and the striking green-and-rufous kingfisher. The quiet, shaded environment contrasts with the open canals of the national park, offering a more intimate wildlife experience. Tours typically depart from Tortuguero village.
Don't miss
- Spot caimans and river otters basking on mangrove roots during a boat tour.
- Look for the rare green-and-rufous kingfisher and other mangrove specialist birds.
- Photograph the reflection of mangrove tunnels in the still, dark water at sunrise.
Tickets & tours
Ways to visit Rio Negro–Rio San Sun mangroves
You can usually visit on your own. A tour is worth it for transport, a guide, or combining nearby sights into one day.
Cheapest way inAdventure Canoe Tour in Tortuguero4.9★ · 84 travelers~2 hoursFree cancellationFrom$23 per personSee dates →
Best full dayRio Celeste Hiking, Sloth Sanctuary & Llanos de Cortes Waterfall Tour4.6★ · 1,158 travelers~12 hoursFree cancellationFrom$135 per personSee dates →
Private & flexiblePrivate Tortuguero Canals Tour & Puerto Limón Highlights4.9★ · 36 travelers~4 hoursFree cancellationFrom$107 per personSee dates →More attractions in Tortuguero