Answer:

snorkel

AnswerCrossword Clue
SNORKELComic-strip sergeant
SNORKELResort swimmer's equipment
SNORKELDiver's device
SNORKELCoral reef explorer's device
SNORKELBreathing tube
SNORKELSwimming apparatus
SNORKELPut your head down, try this, and you'll breathe easy
SNORKELUnderwater breathing apparatus
SNORKELSwimmer's breathing tube
SNORKELIt may be used with fins
SNORKELEnjoy coral reefs
SNORKELBailey's superior
SNORKELSubmarine ventilation device
SNORKELFace-mask attachment
SNORKELScuba gear
SNORKELDiving gear
SNORKELSpearfisher gear
SNORKELBreathing submarine.
SNORKELUsed by Pickerel, submerged 21 days.
SNORKELSubmarine breathing tube.
SNORKELThe latest in submarines.
SNORKELBreathing device enabling protracted submarine immersion.
SNORKELSubmarine breathing system.
SNORKELSubmarine's breathing tube.
SNORKELVentilation for submarines.
SNORKELSubmarine device.
SNORKELDevice for submarines.
SNORKELWorld War II submarine development.
SNORKELBreathing tube.
SNORKELSubmarine contrivance.
SNORKELSubmarine tube.
SNORKELSub tube for air intake.
SNORKELSkindiving aid.
SNORKELU-boat's aid
SNORKELFrogman's equipment
SNORKELBreather of a sort
SNORKELDo some shoal searching?
SNORKELView coral reefs, maybe
SNORKELSkin diver's tube
SNORKELSkin-dive