Tide and Beachcombing Guide

Understanding Tides and Choosing the Best Beachcombing Time

Identify "outgoing tide" periods: The best time for beachcombing is generally within 2 hours before and after low tide, when the sea has retreated to its lowest point. At this time, the largest area of sand and reef is exposed.

Watch for "spring tide" periods: Around the 1st and 15th of each lunar month (during the new moon and full moon), the ocean experiences its "astronomical spring tide" period. This is when the water recedes the farthest and the tidal range is greatest — an ideal time to observe coastal landforms and experience low-tide activities.

Check the real-time tide table: Daily high and low tide times shift slightly. Before heading out, it's recommended to check the daily "Tide Forecast Table" for the specific bay you're visiting (such as Yalong Bay, Haitang Bay or Dadonghai) through an authoritative meteorological or ocean forecasting platform.

Beachcombing Safety and Risk Prevention

Watch for the returning tide: The incoming tide often rises faster than expected. Keep constant watch on water levels and move back toward shore promptly before the tide begins to rise — never linger in deep water or on isolated reefs, and avoid becoming stranded if paths become submerged.

Protect your feet: Reef areas often have sharp barnacles, oyster shells and coral fragments that can easily cut skin. Do not go barefoot or wear flip-flops while beachcombing — thick-soled water shoes or non-slip rubber shoes are recommended.

Be cautious of tropical marine life: If you encounter unfamiliar marine creatures (such as jellyfish, sea urchins or cone snails), keep a safe viewing distance and do not grab or touch them directly, to avoid stings or skin reactions. If you are accidentally stung or injured, seek help promptly or go to the nearest hospital.

Avoid the sea at night or in severe weather: Visibility on the beach is poor at night and tidal conditions can be complex — do not go beachcombing after sunset or during thunderstorms or strong winds.

Responsible Travel and Ecological Protection

Protect coral and habitats: When walking on reefs or shallows, watch your footing carefully, and never step on, disturb or damage coral reefs or seagrass beds.

Guard the blue ocean: Bring your own trash bag while beachcombing and take any waste you generate with you. Be kind to young marine creatures, and help protect Sanya's precious marine ecosystem together.