Seriously, cruise holidays are a fantastically relaxing way of seeing the world. And cruise ships are masterpieces of ingenuity. If you get the chance, ask to see round the engine room if they’re up for it. We love ships and the hidden bits are some of the most interesting. Above the guts of the ship you’ll discover shops, restaurants, casinos, nightclubs, cafes, bars and a billion places to sit and watch the world go by. If you’re lucky, you might come across an exotic migrant. Migrating birds often use cruise ships to rest on before continuing on to wherever they’re heading for. Sometimes they stick around for days chilling with the passengers.