Cinematic close-up shot of underwater air bubbles rising to the surface from the porthole of a submarine in the ocean off the coast of Hawai'i

underwater air bubbles air bubbles rising submarine water pressure hawaii porthole depth pressure air bubbles atmospheric pressure rising submarine water depth buoyancy pressure gauge submersible compressed air flurry adventurous oxygen under the sea surface tension ocean diving saltwater buoyancy submersible experience underwater world peaceful undersea tour deep blue underwater adventure submarine dive submerged educational marine tour ocean recreation big island of hawaii undersea exploration kailuakona submarine tour underwater sightseeing aquatic adventure marine life open ocean nature marine activity hawaiian islands travel 30 fps 4k hdr cinematic shot closeup shot