How to plan a photography trip around tides

Why the tide decides your shot

Ask any seasoned coastal photographer what ruins more shoots than bad weather and they will say the same thing: poor tide planning. The UK sits on some of the largest tidal ranges on the planet, and that range is exactly what makes our beaches, estuaries and rocky shores so rewarding to photograph. It is also what catches people out.

At Weston-super-Mare the difference between high and low water can be around 14 metres. On a falling tide, a wide open beach can double in usable width within an hour, revealing wet sand, channels and foreground textures that were underwater when you arrived. On a rising tide, an estuary that looked like a flat plain at 4pm can be chest deep by 6pm, quietly cutting off the route you walked in on. The tide is not background information. It is the thing that dictates where you can stand, when, and for how long.

How to read a tide table properly

Tide tables look dull and read like the most useful document you will consult all week. Learn the language and you will never guess again.

• High and low water times are given for a named port, with heights in metres above chart datum. Chart datum is not the same as "the beach" — a low water height of 0.4m still means water, and 0.0m does not mean dry sand everywhere.
• Spring and neap tides matter enormously. Springs bring the biggest range and the fastest movement; neaps are gentler and give you a wider working window. A spring low at one location can be unreachable at another.
• Check the time zone. Many printed tables run on GMT. From late March to late October the UK is on BST, so add an hour. Getting this wrong by sixty minutes is the single most common mistake photographers make.
• Secondary ports list offsets in time and height. A beach twenty miles along the coast may be an hour behind the reference port.

Note also that the tide does not simply rise and fall evenly. The rule of twelfths splits the six hours between low and high water into twelfths: one, two, three, three, two, one. The middle two hours do most of the work. That is your fastest-moving window, and it is exactly when many of us are still framing up.

Match the tide state to the location

Different tides suit different photographs. Low water exposes rock platforms, sand ripples, mudflats and those mirror-like drainage channels that make a washed-out sky look deliberate. Mid-tide on a moderate range is often the sweet spot for broad beaches: enough wet sand for reflections, enough water for movement.

High water transforms a place entirely. Harbours fill, sea walls become legitimate viewpoints, and long exposures over groynes or rocks work best when the water is up. Cliff-top compositions, dune viewpoints and pier shots often depend on high water to look right. Decide which tide state your shot needs before you book anything, then build the day around it rather than the other way round.

Plan the access and the exit first

Before you think about light, think about your feet. Walk the route on a similar tide if you can, and note where the water would sit on a bigger one. Look for gullies, rock ledges, soft mud and causeways that flood from behind rather than in front. Estuaries are the classic trap because the water often arrives along a channel you cannot see from your tripod.

• Identify at least one safe high-ground escape route and know how long it takes to reach it.
• Check whether the path you walked in on floods before or after the area you are shooting.
• Note landmarks that stay visible when water rises — a groyne, a line of posts, a cliff notch — so you can judge your position.
• Ask at a local harbour office or coastguard station about fast-moving tides in the area. Some places are locally notorious for it.

Safety margins and dry gear

Give yourself a margin you would be embarrassed to need. Fifteen to twenty minutes of buffer either side of your planned exit is a sensible minimum, and more on big spring tides or unfamiliar ground. Tell someone where you are going and when you expect to be back. Carry a head torch, even in summer.

For kit, a dry bag inside your rucksack is cheap insurance, and a small towel earns its place every trip. Keep your bag above the splash line rather than at your feet, and consider waterproof boots to ankle depth so you can work the wet sand without hesitation. A camera that gets soaked ends the trip for both of you. Rinse tripod legs and filters in fresh water afterwards — salt is patient and thorough.

Make tides a habit

The night before a shoot, check the table, note the times and heights in your phone, and write down your planned window and your hard turnaround time. Check the wind forecast too: a strong onshore wind can push water higher and faster than the table suggests.

Do this a handful of times and it stops feeling like homework. You will start choosing locations by tide rather than fighting them, arriving at the right state of water with dry feet and a clear route home. That is when coastal photography becomes genuinely enjoyable — and, not coincidentally, when the best frames start appearing.