Short answer: Park at the top — you have no realistic alternative — and know the walk back up is steep and cobbled. Arrive before 10am to see the village before the coach parties. Book the restaurants well ahead.
Port Isaac is a tiny working fishing village that receives a very large number of visitors, mostly because of television.
Parking: the main car park is at the top of the village and is effectively the only option. It fills early on a sunny day.
The walk: steep and cobbled going down, genuinely hard work coming back up. Buy anything heavy on the way down.
Timing: before 10am the village is a working harbour. By midday in season it's very busy with filming-location visitors.
Booking: the well-known restaurants here book up a long way ahead. Don't turn up hoping.
Accessibility: honestly difficult. The gradient and cobbles make it hard with a wheelchair or pram, and there's no flat route in.
There is no single standard fee. Charges vary by car park, by operator and by season, and this catches first-time visitors out constantly. What to know:
In peak season — roughly late July to the end of August, plus school holidays and bank holidays — yes, for anywhere you actually want to eat. Cornish restaurants are mostly small, and the good ones fill.
Outside those periods it's far more relaxed, and you can often walk in. The exceptions that are worth booking year-round are the well-known destination restaurants and anywhere doing a Sunday roast.
A practical point people miss: many Cornish kitchens stop serving earlier than you'd expect, particularly out of season. Turning up at 8:30pm in October can mean finding the kitchen closed even where the bar is open.
Main roads and towns, yes. Beaches, coves and smaller attractions, often not — and satnavs can be actively unhelpful in Cornwall.
The specific problem: satnavs routinely route drivers down single-track lanes that are technically the shortest way and practically a nightmare, particularly with a hire car in summer. Following brown tourist signs is usually better than following the satnav for the last few miles.
Phone signal is genuinely patchy in west Cornwall and on the moors, so downloading offline maps before you travel is worth the two minutes.
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