Erscott's Hole (Erscotts Hole)

Low risk: Tidal currents in lagoon channel

The site is within an intertidal zone and can be affected by tidal currents, especially around the reef edge at mid-to-low tide.

Low risk: Sharp coral and reef damage risk

Staghorn coral formations are dense and fragile — snorkelers must avoid touching or standing on the coral to prevent injury and damage.

Low risk: Tour boat traffic

Boat traffic from glass-bottom tour boats operating in the shallow lagoon area requires awareness.

Low risk: Sun exposure

Sun exposure is intense on the lagoon; reflected UV from the water surface increases burn risk year-round, most intense spring through autumn.

Low risk: Galapagos Whaler Sharks

Occasional Galapagos Whaler sharks (harmless, typically 2m) cruise through the hole. They are inquisitive but not aggressive.

Low risk: Stingrays

Bull Rays and Long-tailed Whip Rays rest on the sandy bottom. Snorkelers should avoid stepping on or startling them.

Low risk: Coral Reef Wall

The hole is surrounded by a 3-4m high coral reef wall. Snorkelers should avoid touching or standing on the fragile coral.

Low risk: Galapagos Shark Presence

Galapagos whaler sharks (up to 2m) are frequently seen but are harmless and inquisitive. No known incidents.

Low risk: Mild Tidal Current

The lagoon is sheltered, but occasional tidal current can develop in the channel between the reef and the hole.

Low risk: Stingray Encounters

Stingrays and bull rays resting on the sandy bottom can be startled if stepped on. Shuffle feet when entering.

Low risk: Catfish Swarms

Catfish swarm in large numbers around snorkelers; while not dangerous, they can be startling.