In San Andres, don’t miss out on the Blue Wall, a popular drift dive that takes you along a steep cliff adorned with sponges and abundant marine life. For an easy reef dive, head to Nirvana. For something a bit more advanced zoom out to Trampa Tortuga. The visibility here is out of this world.
While on Providencia, head to Felipe’s Place. This coral garden has fascinating coral formations and plenty of creatures to see. The most biodiversity in the region can be found at the Spiral. The tunneling spiral leads you to a fish hideaway, complete with coral pillars.
Santa Catalina will give you plenty of shark encounters, and the Santa Catalina Slope is a stellar spot to check out during your trip to the area.
Fly into the airport of San Andrés, then rent a scooter to get around the island. To get to Providencia you have to fly from San Andrés. Santa Catalina has only footpaths to get around.