Rise early today and drive 35-minutes to Playa Flamingo for a morning of snorkelling in the warm clear waters around the Catalinas Islands - a sprinkling of 20 rocky islands in the Gulf of Papagayo.
Enter the water for two 40-minute sessions, following the rock formations and looking for angelfish, butterfly fish, various pufferfish, starfish, white-tipped reef sharks and schools of jacks and grunts.
The 'Cat' Islands are famous for their concentration of giant manta rays, some with wingspans up to 20 feet (6 m). The best time of year to see mantas is from November to May, when they are most common and visibility is at its best, with their numbers peaking between January and March.
From September to March you may also see humpback whales from the boat on your way to or from the islands. All equipment and snacks are included, but be aware that there can be strong currents.
Note: Ask your hotel for a boxed breakfast. Minimum 4 pax on the day.