Dive-site story
Jules' Undersea Lodge sits on the floor of Key Largo's sheltered Emerald Lagoon. Built originally as the La Chalupa research laboratory off Puerto Rico, the structure operates as an underwater habitat and training site. Divers descend through mangrove-tinted water to inspect the exterior hull, peer through circular viewports, or enter the interior via an underside moon pool. Artificial structures, sunken boats, and training stations scatter across the silty basin floor.
Habitat exterior with views through circular observation windows
Moon pool access point leading into the air-filled wet room
Sunken training platforms, artifacts, and boat hulls across the lagoon floor
Sheltered, current-free mangrove basin for buoyancy practice and habitat specialty courses
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Diving runs year-round in the sheltered basin, with the warmest water arriving during summer and early autumn.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mangrove SnapperLutjanus griseus | Common | ||||||||||||
| Goliath GrouperEpinephelus itajara | Common | ||||||||||||
| Caribbean Spiny LobsterPanulirus argus | Common | ||||||||||||
| Lined SeahorseHippocampus erectus | Rare | ||||||||||||
| West Indian ManateeTrichechus manatus | Seasonal |
Marine forecast
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