You can take a short cruise along the Sumida from Asakusa to Hama Rikyu Gardens. The trip takes around 35mins and costs 740yen. This cruise allows you to see some of Tokyo from a different perspective. The Asakusa Water Bus Pier, can be reached by taking the Ginza Subway or Tobu Lines to Asakusa and the Water Bus Pier is next to those stations. Tickets can be purchased from the vending machines inside.