Isla Alcatraz & Isla Tolinga (snorkel channel)
Nature spot · Nicoya Peninsula · hidden gem

Two small islets beside Isla Tortuga with a sheltered channel of clear water between them - a stop for snorkeling and paddleboarding on day trips.
- Time there
- 1 h
- Best time
- morning
- Kids
- 5 / 10
- View
- 7 / 10
- Crowds
- 5 / 10
- Swimming
- 9 / 10
- Effort
- 1 / 10
- Location
- 9.77919, -84.90053 — Google Maps
- Ratings
- 4.7 on Google (3,961)
Tip
Ask the boat captain to stop here early in the day when the channel is calm and the light is good for snorkeling.
Be careful
Boat traffic and currents between the islets - snorkel with a float and stay close to your boat.
Getting there
Boat only, usually as a stop on Tortuga Island tours.
Places nearby
- Tortuga Island Tour (Isla Tortuga Tour Costa Rica)Tours & Adventure · from $70High-volume Isla Tortuga operator: snorkeling, a beach day and lunch on the island, with departures from Tambor and Montezuma, Santa Teresa and Puntarenas.
- Bahía Rica (bioluminescent kayak tours & fishing lodge)Tours & AdventureA small wooden kayak-and-fishing lodge on the bluff 1.5 km east of the Paquera ferry landing, best known for its night kayak tour on Paquera's bio-bay, where every paddle stroke lights up blue-green plankton and you can even jump in and swim through the glow.
- Soda La EsmeraldaSodas & Local FoodA roadside soda on the Paquera-Tambor road with a solid Google rating from over 250 reviews - a handy refuel stop for traditional Costa Rican food.
Sources: OpenStreetMap way/12424963 · Wikidata Q23746550 · https://wanderlog.com/drive/between/78772/78788/santa-teresa-to-montezuma-drive