Scuba divers in black and blue wetsuits with pink fins explore a vibrant coral reef in clear blue water with a sandy bottom, bathed in sunlight filtering through the ocean surface

underwater ocean sea coral reef divers scuba diving wetsuits fins mask tank regulator marine life coral fish sunlight blue water clear water sandy bottom depth exploration adventure tropical vacation travel hobby sport recreation equipment bubbles swimming floating weightlessness silence serenity beauty nature ecosystem conservation environment biology geology geography light shadow color contrast texture aquatic marine