Diving

Okeanos Aggressor. Eight- and 10-day dive safaris to Cocos Island operate year-round. Tárcoles, Puntarenas. 800/348–2628; www.aggressor.com. From $5,200.

Undersea Hunter. The boat operates 10-day dive trips to Cocos Island year-round and is part of a fleet that also includes Argo and Sea Hunter. Park fee of $490 not included in rate. Tárcoles, Puntarenas. 2228–6613; 800/203–2120; www.underseahunter.com. From $5,295.