Mega Dive is a sea-activity operator based in Sesimbra (Castelo), Setúbal, offering a range of coastal experiences on the Atlantic coast. The company runs dolphin-watching cruises led by a marine biologist, snorkeling sessions in a marine reserve, guided scuba diving and introductory "batismo" dives, kayak tours through sea caves, sunset cruises, and exploratory boat trips to the caves and wonders of Cabo Espichel. Each trip includes guided interpretation and safety briefings led by expert guides or instructors noted in the trip descriptions.
Mega Dive focuses on small-group outings suitable for families, couples, and all skill levels, designed to combine wildlife encounters, coastal scenery, and photo opportunities. Trips highlight dolphin sightings, encounters with fish, rays, octopus, vibrant reef life, and visits to sea caves and hidden lagoons. Participants can expect opportunities to learn about local marine life, capture coastal photographs, and enjoy local sweets offered on some experiences. The operation runs from Sesimbra (Castelo), a convenient launching point for access to the nearby marine reserve and Cabo Espichel sea caves. Booking information, availability, and specific safety requirements are provided per trip; customers should consult the trip details for age limits, equipment, and health guidance. Mega Dive presents activities described in public trip summaries and works with guides, instructors, and a marine biologist to deliver each listed experience with attention to visitor enjoyment and on-water safety.
Bookings are available seasonally and depend on weather and sea conditions; prospective visitors should check schedules and book in advance to secure preferred dates and times.