The River Thames, known alternatively in parts as the River Isis, is a river that flows through southern England including London. At 215 miles, it is the longest river entirely in England and the second-longest in the United Kingdom, after the River Severn.
Etymology: Proto-Celtic *tamēssa, possibly meaning "dark"
AdReserve now, pay later - top tours await your booking. Free cancellation available. Explore London From The Thames. Free Cancellation & Full Refund Up To 24 Hours Before
Over 300,000 Experiences · Free Cancellation · A TripAdvisor Company · Verified Reviews