Haliotis' Madeira dive center is based at the Hotel Dom Pedro Baía in Machico. The facilities include male and female changing rooms with hot showers and towels, a shop with the best diving brands, a classroom, a technical zone with equipment to rent, a filling station and a pool with 3 meters depth. Dives go out on the boat Marginatus, an 8.6-meter semi-rigid Searibs with a 250 horsepower Yamaha engine, specially prepared for diving on the island. Madeira offers easy dives with a great diversity of species, with the Garajau reserve being the most wanted place due to the great amount of life found there, especially the great Dusky Groupers. In front of Madeira are the Desertas Islands, where the only colony of monk seals in Portuguese territory lives. Water temperature varies between 17ºC and 22ºC and visibility between 10 and 25 meters. The mascot of Haliotis in Madeira is the Dusky Grouper (Epinephelus marginatus). The center holds Alvará de Animação Turística 9/2009 and Operador Marítimo Turístico licence Nº17.