Grand Cayman's barrier reef sits close to George Town — snorkel boats reach coral gardens, sponges and tropical fish in clear water. Tours supply masks, fins and a guide; many bundle Stingray City on the same itinerary.
- ✓Half-day reef trips fit most 7–10 hour port calls.
- ✓Beginners welcome — flotation aids often available.
- ✓Avoid sunscreens that harm coral; rash guards work well.
- ✓Glass-bottom boats suit guests who prefer not to swim.
