Passage Key Sandbar is a low-lying, remote sandbar located at the mouth of Tampa Bay. This site is accessible only by boat and features shallow, sandy-bottomed waters with depths ranging from 1 to 2 metres. It is well-suited for beginners looking for a casual snorkel experience. Visibility at the site varies significantly, ranging from 5 to 18 metres depending on conditions. Divers and snorkellers should be aware of potential hazards, including boat traffic and mild to strong currents. The water temperature fluctuates throughout the year, reaching a high of 31C in the summer months and dropping to 18C in January.

Spanish Rocks is a shore-entry reef and artificial reef site located 100 metres off the coast of St Petersburg. The site features a mixed structure with depths ranging from 15 to 25 metres, averaging 18 metres. Divers encounter mild currents, making the site suitable for beginners. Visibility varies significantly, ranging from 1 to 20 metres, so checking local reports is recommended. Entry requires caution due to potential surf and shore breaks. The site is also accessible for night diving, with typical dive times around 50 minutes. Divers should remain aware of boat traffic and carry a cutting tool to mitigate entanglement risks.

Spanish Rocks is a reef located 100 metres offshore in Tampa Bay. This shore-entry site is suitable for beginners, though divers should be prepared for a long surface swim to reach the reef. The site features depths ranging from 15 to 25 metres, with an average depth of 18 metres. Conditions include mild currents and visibility typically between 10 and 20 metres. Hazards at this location include surf and potential low visibility. Night diving is permitted, and a typical dive lasts approximately 45 minutes. Parking facilities are available for visitors. Species recorded around this area include bonnethead, shortnose batfish, horseshoe crab, drum, croaker, gurnard, snake eel, Atlantic spadefish, spotfin burrfish, honeycomb cowfish, sea star, crab, bream, hermit crab, and pigfish.

Egmont Key in Tampa Bay features the submerged ruins of Fort Dade, including historic gun batteries from the Spanish-American War. These structures now function as an artificial reef in shallow water, with depths averaging 2 metres. The site is accessible only by boat, located approximately 2575 metres from shore. Divers and snorkellers can expect mild currents and visibility ranging from 5 to 15 metres. Due to the presence of sharp coral and active boat traffic, caution is advised. The site is suitable for intermediate divers and offers excellent conditions for snorkelling.

The Regina is a 247-foot molasses barge that sank in 1940 and now serves as an underwater archaeological preserve. Located 46 metres offshore in Tampa Bay, the wreck sits in depths of 4 to 6 metres, with an average depth of 5 metres. This site is accessible via a shore entry and is rated for intermediate snorkelers. Conditions include mild currents and visibility ranging from 2 to 5 metres. Divers and snorkelers should be aware of potential hazards including entanglement, sharp structures, surf, and low visibility. Water temperatures fluctuate significantly throughout the year, ranging from 18C in January to 31C in July and August.

North Beach at Fort De Soto Park in Tampa Bay offers a shallow, protected lagoon environment ideal for beginners and families. The site features extensive seagrass beds and sandy shallows, with depths typically ranging from 1 to 2 metres. Access is directly from the shore, where a natural sandbar helps maintain calm conditions. Visibility generally fluctuates between 3 and 10 metres. Water temperatures vary significantly throughout the year, from 17C in January to 32C in July and August. Divers and snorkellers should be aware of potential hazards including jellyfish, sharks, and surf. Facilities at the park include parking, toilets, showers, changing rooms, a rinse station, and a cafe.

Shell Key is an undeveloped barrier island in Tampa Bay featuring expansive seagrass beds. This shallow site is suitable for beginners, with depths ranging from 1 to 3 metres and an average of 1 metre. Access is by boat only, as the site is located 2400 metres from the shore. Divers and snorkellers may encounter snails, which are very common, alongside uncommon sightings of drum and croaker, horseshoe crabs, various crabs, and sea hares. Conditions vary, with visibility between 3 and 10 metres and mild currents. Hazards include boat traffic, rip currents, strong currents, and surf.

Dive Adventures in Tampa Bay consists of a network of artificial reefs situated in depths ranging from 18 to 30 metres. This site is strictly for advanced divers, as it requires boat access and involves navigating variable currents and shifting visibility. Because conditions fluctuate significantly, divers should assess local water movement and visibility before planning their descent. There are no permanent facilities at the site, so all logistics must be managed via boat charter. Water temperatures vary throughout the year, ranging from 18C in January to 28C in July and August, necessitating appropriate thermal protection based on the season.