Under the Surface

How to complete Under the Surface

Seeing the seabed and its life without getting wet bridges the gap between a beach view and full scuba diving. A submarine or glass-bottom boat lets anyone, including non-swimmers and kids, watch coral, fish, and the ocean floor up close.

1. Choose a destination with clear water and a reef or wreck, such as the Caribbean, Hawaii, the Red Sea, or the Great Barrier Reef
2. Decide between a real semi-submersible or tourist submarine for depth, or a cheaper glass-bottom boat for shallow reefs
3. Book a daytime tour at high sun for the best light and visibility underwater
4. Pick a calm-weather day, since chop stirs sediment and ruins clarity
5. Sit near the viewing glass and bring a polarized lens or phone case to cut surface glare in photos

Tips

• Glass-bottom boats only show shallow water; book an actual submarine if you want real depth
• Calm, clear mornings beat windy afternoons for visibility
• If you're prone to motion sickness, take something beforehand as enclosed subs can feel stuffy

What counts as done

You've taken a submarine or glass-bottom boat tour and watched the ocean floor and marine life through the viewing window.