Aqualung are a company who offer sub-aqua diving equipment. They are the oldest diving manufacturer company, and sell a range of diving equipment and accessories.

Diving schools can vary in what scuba equipment they require their students to buy. Buckeye Scuba Diving School in Cleveland, Ohio for example sells its own scuba equipment.

Mares sells a wide range of scuba diving equipment that one would need when going on a scuba diving trip. Some equipment include jackets, fins, masks, snorkels as well as spear guns.

The Dive Shop Dubai sells scuba diving equipment in Dubai. They sell Scubapro, TUSA, XS Scuba Trident SeaLife underwater cameras and offer PADI scuba diving certifications. www.TheDiveShopDubai.com

It all depends on the equipment you're using, diving in it's self does not cost a thing.