Related Clues:

• Breathing device
• Certain explorer's gear
• Underwater breathing gear
• Snorkel alternative
• Frogman's acronym
• Go deep, perhaps
• Face-mask attachment
• Diver's apparatus
• Surface-swimming equipment
• It can take a dive
• Swimming apparatus
• Coral reef explorer's device
• Diver's aid
• Underwater tank
• Diving apparatus