Isla de los Patos in El Salvador features a combination of natural reef and artificial reef structures. The site is shallow, with depths ranging from 4 to 9 metres and an average depth of 8 metres. Visibility typically spans 10 to 30 metres, allowing for clear views of the reef layout. Water temperatures remain between 28 and 30 degrees Celsius, though divers should be prepared for a marked thermocline between 12 and 15 metres. Access to the site requires a boat. Due to the presence of sharp coral and rock edges, careful buoyancy control is necessary. Divers should confirm boat access and facility availability with a local operator prior to departure.

Ilopango is a volcanic crater lake in El Salvador featuring walls, drop-offs, and artificial reef structures. Divers can explore depths ranging from 10 to 30 metres, with an average depth of 25 metres. The site presents challenging conditions, including low visibility between 1 and 6 metres and a distinct thermocline at 12 to 15 metres. Due to these factors, advanced certification is required. Both shore and boat entries are available, and guided tours are recommended to navigate the topography effectively. The habitat supports temperate freshwater fish, including catfish and livebearers. Divers should maintain precise buoyancy control and monitor their depth closely throughout the dive.