Fodor's Expert Review Thames River
The twists and turns of the Thames through the heart of the capital make it London's best thoroughfare and most compelling viewing point. Every palace, church, theater, wharf, museum, and pub along the bank has a tale to tell, and traveling on or alongside the river is one of the best ways to soak up views of the city. Frequent daily tourist-boat services are at their height April through October. In most cases you can turn up at a pier, and the next departure won't be far away; however, it never hurts to book ahead if you can. The trip between Westminster Pier and the Tower of London takes about 40 minutes, while that between the Tower and Greenwich takes around half an hour. A full round-trip can take several hours. Ask about flexible fares and hop-on, hop-off options at the various piers.