Booking a coastal cottage directly with the owner is one of the nicest ways to plan a UK seaside break. You get local knowledge, a bit of flexibility and often a better price than going through a large platform. But it also means there is no call centre in the middle if something goes wrong at eleven o'clock at night on a dark lane in Pembrokeshire. A short, friendly email exchange before you pay can save an enormous amount of stress later.

Arrival, keys and the reality of a late journey

Arrival logistics cause more holiday misery than any other detail. Coastal roads are slow, ferries are weather-dependent and a caravan on a single-track lane in Cornwall or the Highlands can add an hour without warning. Ask specifically:

• What is the earliest and latest arrival time, and is a late arrival acceptable?
• How are keys handed over — a key safe, a meet and greet, or a neighbour?
• If you are delayed, who do you ring, and until what time are they contactable?
• Is there a light left on, and does the key safe work in the dark?

If the postcode covers several properties, ask for a What3words location or a written description of the final turn. Remote rural postcodes routinely cover half a mile of lane, and arriving after dark on an unfamiliar road with tired children is no fun. If the cottage is reached by a ferry, causeway or tidal road, ask what happens if you miss the last crossing.

What is included, and what you should pack

Self-catering means different things to different owners. Confirm the basics in writing so nobody is disappointed on the first evening:

• Are bed linen, towels and tea towels provided, and is there a charge?
• Is electricity, heating oil or gas included, or metered and billed afterwards?
• Are logs, kindling and firelighters supplied for a wood burner?
• Is there a cot, high chair or stair gate, and are they properly compliant?
• What is the broadband speed, and is there any mobile signal at all?
• Is parking off-road, on the quay, or a permit left in the cottage?

Quayside properties deserve extra questions. Ask whether parking is affected by tides or harbour events, whether there are steep external steps, and how close the nearest neighbour is — harbour walls carry sound in a way that surprises people.

Emergency contacts and out-of-hours support

This is the question owners are happiest to answer and guests most often forget. Ask for a phone number that is actually answered, plus a second contact in case the first is unavailable. Then ask what to do in the situations that genuinely happen: a failed boiler in February, a burst pipe, a power cut, a lost key.

It is also worth knowing the practical geography before you need it. Where is the nearest hospital with an A&E, the nearest late-opening shop, the nearest vet if you are bringing a dog, and where is the stopcock, fuse box and boiler reset button? If the cottage has no mobile signal, ask for the landline number and whether it accepts incoming calls.

Money, deposits and changes of plan

Before transferring anything, get the terms in writing. Ask about the deposit amount, the date the balance is due, whether there is a separate refundable damage deposit and how quickly it is returned. Clarify the cancellation policy in plain terms — including what happens if a storm closes the road or the ferry. Most owners will point you towards travel insurance for that, and they are right to.

On payment, favour traceable methods such as card or a bank transfer to an account in the same name as the property owner or their business. Be cautious if you are pushed to pay quickly, if the account name does not match, or if the only contact is a mobile number and a free email address. A written booking confirmation should show the full address, total cost, what is included and the cancellation terms. Keep it somewhere you can find it offline.

Local knowledge that makes the week

Owners who live nearby are a quiet goldmine. Ask about tide times if you plan to swim, fish or launch a kayak, whether the beach has dog restrictions between May and September, which pub takes bookings in August, and where to buy fresh fish on a Saturday morning. Ask about bin collection days and where to leave recycling, since remote properties often have no kerbside service. Finally, ask what they would do on a wet Tuesday — the answer is usually better than anything you will find online.

The questions to settle before you pay

• Exact arrival window, key collection method and late-arrival plan
• Written directions plus a precise location marker
• What is included, what is charged extra and what you must bring
• Two contact numbers, including an out-of-hours one
• Nearest hospital, shop, vet and utility shut-off points
• Deposit, balance date, damage deposit and cancellation terms
• A booking confirmation with the full address and total cost

None of this takes long. A single well-worded email covering these points tells you a great deal about how the cottage is run, and an owner who answers clearly and cheerfully is usually an owner who will look after you when the weather turns. Sort the details before the money leaves your account, and the holiday itself can be exactly what a coastal break should be: uncomplicated, salty and slow.