Natural Park Aquarium Boat Trip

The Natural Park Aquarium boat trip runs three hours from San Antonio, heading northwest along Ibiza's coast to explore protected marine reserves and endemic species. Departing Mondays, Wednesdays, Thursdays and Saturdays at 11am, the route takes in Cap Blanc Aquarium—a former lobster nursery nestled in a sea cave—plus the coves of Cala Gració, Cala Gracioneta, Cala Salada, Cala Saladeta and Punta Galera. The final destination is Margaritas Islands, a nature reserve off Ses Balandres, where a 45-minute swim stop lets you use snorkelling gear or view marine life through the glass bottom boat. Capitan Nemo provides onboard drinks (water, soft drinks, sangria, white wine, beer) and fruit and salty snacks. Arrive 30 minutes early at the Capitan Nemo kiosk in San Antonio port, directly opposite the Egg roundabout. The trip returns by 2pm, giving you the afternoon free to explore the rest of Ibiza.