Spend a full day from Tambor exploring Gulf islands: feeding spider monkeys, snorkeling around Isla Tortuga, then returning at night for a guided bioluminescent snorkel. This private tour combines wildlife viewing, beach time and a rare nocturnal plankton display.
More ways to explore the area's outdoor wonders
The day opens on Tambor’s pier: warm, briny air, a low-profile panga cutting through the glassy Gulf of Nicoya as islands rise on the horizon. You’ll pass five small isles in roughly 45 minutes, each a slab of rock, mangrove and scrub that feels a world away from the mainland. The first stop is Spider Monkey Island — a chance encounter with curious primates swinging through coastal trees — then the boat pushes on to Isla Tortuga, where white sand and clear shallows invite daytime snorkeling.
Difficulty
moderate
Duration
8–9 hours
Fitness Level
Suitable for most fitness levels; should be comfortable entering and exiting boats and able to swim short distances.
Wildlife
History
The Gulf of Nicoya has long supported fishing and small agricultural communities; islands served as seasonal fishing camps and waypoint landmarks for coastal transport.
Conservation
Use reef‑safe products, avoid touching corals and follow guide instructions — mangroves and shallow reefs are delicate and recover slowly from damage.
Reserve your spot on the Tortuga Island, Spider Monkey & Bioluminescent Snorkel - Tambor today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring reef‑safe sunscreen
The tour spends hours in shallow reef areas — use reef‑safe SPF to protect marine life and prevent sunburn.
Pack a small dry bag
There’s limited dry storage on the boat; protect phones, cameras and spare clothes from spray and sand.
Take seasickness prevention
Open gulf crossings can get choppy; consider motion‑sickness meds or acupressure bands if you’re sensitive.
Be ready for night swimming
Bioluminescent snorkeling requires entering the water after dark — bring a comfortable mask and be confident swimming in low light.
Reef‑safe sunscreen
Protects your skin during long sun exposure and prevents damage to coral and marine ecosystems.
Swimsuit and quick‑dry towel
You’ll be in and out of the water throughout the day and again at night for bioluminescent snorkeling.
Waterproof dry bag
Keeps valuables and extra layers dry on a boat with spray and sandy beaches.
Lightweight water shoes
Helpful for rocky landings, mangrove channels and walking on shell‑strewn beaches.