Getting there: ferries, flights and the first glimpse of island life

Half the charm of a Channel Islands break is how quickly the ordinary world falls away. You can leave a grey British morning and be eating crab on a granite harbour wall by mid-afternoon, no airport queues at dawn required.

Flights from several UK regional airports take around an hour to Jersey and a little longer to Guernsey, which makes a Friday evening departure perfectly realistic. If you prefer to arrive by sea, conventional ferries sail overnight from Portsmouth and Poole to both islands, while faster catamaran services run from Poole, Portsmouth and Weymouth in around two to three hours. Sailings are weather-dependent, so if your trip is short, build in a little slack at either end.

Once you are there, a hire car gives you the most freedom, though the islands are small enough to explore by bus and bike. Jersey is roughly nine miles by five; Guernsey is smaller still. Driving is on the left, speed limits are low, and green lanes force you to slow to 15mph — which is exactly the point.

Jersey: St Helier, St Aubin and the south coast

St Helier is the practical base: a working harbour town with a market, a handsome Victorian covered arcade, and enough restaurants to fill a long weekend. The ferry terminal and airport bus both land you within walking distance of the centre.

For something gentler, head west to St Aubin. This is the Jersey most visitors fall for — a small harbour ringed by granite warehouses turned into cafés and pubs, with a three-mile promenade running along the bay back to St Helier. You can walk it at low tide on the sand or stick to the sea wall when the water is up.

Further west, St Brelade's Bay offers a proper crescent of sand with cafés at its edge and the medieval parish church tucked behind the beach. It is the island's most photographed spot for good reason, and it stays pleasant even when the sun is being coy.

• Don't miss: the war tunnels and the Occupation history that gives these islands a distinct character
• Do try: the Saturday morning market in St Helier for local produce and Jersey Royals in season
• Allow: a full day to loop the island by car, stopping at Corbière lighthouse in the west

Guernsey: St Peter Port and the smaller islands

Guernsey's capital, St Peter Port, is steeper and more theatrical than St Helier. Town climbs the hill from the harbour, with narrow streets, a castle guarding the entrance, and views across to Herm and Sark on a clear day. It rewards wandering rather than planning.

The real treasures lie beyond town. A short ferry hop from St Peter Port takes you to Herm, a car-free island you can walk end to end in under an hour, with a shell-strewn beach at Shell Beach that feels genuinely removed from the world. Sark is wilder and stranger, with no cars at all and cliff paths that will test your legs and reward you generously.

Back on Guernsey itself, the north and west coasts offer long, quiet bays — Cobo, Vazon, L'Ancresse — where the tide retreats an enormous distance and leaves rockpools behind. The west coast faces the Atlantic, so it is the place for sunset walks and, if you surf, the island's best swell.

Quiet beaches and coastal walking

Peak-season crowds exist, but they cluster in predictable places. Walk twenty minutes in the right direction and you will often have a beach to yourself.

• Jersey: Plémont, Grève de Lecq and the north coast coves are quieter than the south
• Guernsey: Moulin Huet, painted by Renoir, is a wooded valley leading down to a secluded bay
• Tides: the range here is among the largest in the world — check tables before setting out across causeways or sand

The cliff paths are excellent and well signposted. A four- to six-mile stretch is a satisfying half day, with pubs or beach cafés placed conveniently at either end. Wear proper shoes; granite can be slick and the steps are steep.

Eating and drinking by the water

Seafood is the headline act and it is exceptionally good. Look for Jersey oysters, Guernsey crab sandwiches, mussels, scallops and simply grilled catch of the day. The islands also produce rich, golden-yellow butter and cream from their famous herds, which turns up in everything from scones to sauces.

Book dinner in St Helier and St Peter Port in advance for Friday and Saturday nights — the best harbour-side tables go early. Elsewhere, pub food is generous and unfussy, and a beach café serving crab salad with a view of the tide coming in is hard to beat. Local cider and ale are worth seeking out too.

Practicalities for a short break

• When to go: late spring and early autumn offer the best balance of weather, prices and space
• Packing: layers, a windproof jacket, comfortable walking shoes and swimwear — you may use all four in a day
• Money: British pounds are accepted throughout, though some places prefer card
• Currency note: local £1 notes circulate; spend them or keep one as a souvenir
• Booking: reserve accommodation and cross-Channel travel at least a few weeks ahead in summer

Two or three nights is enough to feel properly unwound, and long enough to visit one island well or two in a slightly breathless way. Go slowly, follow the coast road, and let the tide set your schedule. That is the whole art of island living.