In this guide
Early in my walking life I once set off with a 35-litre pack loaded like I was crossing a mountain range: stove, three changes, a book, a fleece, a waterproof I'd never use. I'd gone four kilometres, waded one knee-deep channel, and my boots were full of seawater. Everything absorbent in that pack stayed wet for the rest of the day, and by the sixth kilometre I was carrying the wet version of the gear I'd been so proud of packing. The coast doesn't care about your gear philosophy. It will get everything damp within two hours, and the question is not what you own but what earns the weight.
The pack I eventually ditched
Modern coastal walks are shorter than mountain ones. A typical tide-aware day covers eight to fourteen kilometres on mixed sand, rock and path, and you're usually back at the car before dark. That calls for a 20-25 litre day pack with a hip belt, not an expedition pack. Anything bigger becomes an excuse to carry things you won't use. If you can't imagine needing an item once you're standing on the rocks at low tide, it stays in the car.
Feet: the thing that ends walks
This is the decision that makes or breaks the day, and it's where most people get it wrong. Approach shoes and heavy hiking boots perform fine on dry path. They perform badly on a seaweed-covered boulder: the rubber grips dry rock like glue and wet rock like glass.
For serious rock hopping, carry neoprene booties or dedicated water shoes with a thick, grippy rubber sole and a closed toe. The wetter the rock, the more you want that sole in contact, not a lugged boot that balances on three lugs. Socks are optional inside booties; above them, no cotton — it stays wet and rubs. On pure sand days, trainers are fine, but assume they get wet. Which brings me to the rule I learned the hard way: on a coast walk, your feet are going to get wet. Choose gear around that fact instead of fighting it.
Electronics and salt water
Saltwater and electronics have a fast, bitter relationship. Phones, car keys and camera gear all need the same treatment: sealed pouch, inside a second bag. A proper waterproof phone pouch on a lanyard around your neck is the cheapest insurance you'll buy all year — and remember it doubles as your tide-table reader, your camera and your emergency phone. Keep a printed or screenshot copy of the tide rows in your pocket too, because signal on headlands is a lottery.
Keys live in a small dry box or a sealed bag at the bottom of the pack, never in a back pocket you sit on or lose while wading. If you carry a camera, a cheap 10-litre dry bag keeps it and the rest of your kit one zip away from disaster.
Sun, wind and the layer question
Coastal sun is stronger than it feels: water reflects it, wind cools you into forgetting it, and a three-hour walk at midday burns people who would never get burnt on a hillside inland. SPF 50 on the exposed skin before you leave, lip balm with sunscreen, and a light long-sleeved top beats reapplying constantly. A sun hat with a chin strap is non-negotiable on exposed headlands — the hat that flies off is worse than no hat at all.
Then the wind. Bring a wind shell, not a heavy waterproof jacket, unless the forecast says rain. The coast is windier than the map suggests, and a 100-gram shell changes a cold rest stop into a fine one. One warm layer (fleece or merino) folded at the bottom of the pack covers the evening return. Cotton hoodies stay home: wet cotton on the coast is misery.
Water, food and the dry bag
Dehydration on the coast is sneaky because the sea is right there. Carry two litres minimum in warm weather, more if you're walking with children. People walk slower on rocks than they estimate, and a four-hour planned walk often becomes six, with no shop at the turn-around point.
Food should be the no-cook kind: nuts, sandwiches, fruit that doesn't bruise, chocolate that won't melt. And keep everything edible in the dry bag, separately from the salt-stained layer you just peeled off. The pack smells become a thing otherwise, especially if you're also camping.
What happens when the light goes
Most tide-aware walks finish before dark, but walk plans change: a slow tidepool hour, a wrong turn, waiting for a window. Carry a headlamp, even for a day walk. Two hundred lumens is plenty; check the batteries at home, and stow a spare set. Add a tiny first-aid kit: blister plasters, antiseptic wipes, a compress bandage, tweezers for splinters and urchin spines. That kit weighs nothing and earns its place on day one.
The honest short list
After all of this, the pack that earns its weight is short:
- Grippy water shoes or neoprene booties; no cotton next to skin.
- 2-litre water bottle, no-cook snacks.
- Phone in a sealed neck pouch; keys in a sealed bag; printed tide rows.
- SPF 50, sun hat with chin strap, wind shell, one warm layer.
- Headlamp with spare batteries, mini first-aid kit.
- 10-litre dry bag for everything valuable.
That's it. The pack I carry now is half the weight of the one I started with, and I've never once missed the book. Our Coastal Packing List tool lets you tick these off for your exact day — sand, rock, family trip, or longer shore walk — and it won't let you leave the waterproof pouch behind.
Safety first. Gear helps, but it doesn't replace checking the tide. A well-packed day still ends badly if you're on a causeway after the window. Check the local tide table and on-site signage before you set out. When in doubt, turn back.