There are numerous ways to see London, but after dark the greatest way to take in the capital is by boat. With a cash bar selling drinks at pub prices, you can watch the city nightlife glide by with a beer in your hand. There’s also a hot buffet to keep you fuelled, a resident DJ spinning classic anthems and free entry to Opal nightspot when you reach terra firma. Drink, dance and party like it's the last night on earth as you cruise along the Thames. It's a tough life. Over 18s only. No all male groups.