Next, get onto the water to acquaint yourself with the city's intricate island layout. This two-hour boat tour, tel: (46-8) 1200 4000, takes in 15 of Stockholm's bridges and the locks that connect Lake Mälaren with the Baltic Sea. Admire the saffron- and terracotta-toned architecture along the way. Boats depart on the hour from 10 a.m. in summer.

• 1. Under the Bridges
  Strömkajen, Stockholm, S, Stockholm, Sweden; (46-8) 1200 4000 59.32934 18.07478 Stockholm Bridges Cruise