Top spot for a jog or power walk is the pedestrian walkway around this lake in the city center. It’s about 7km (4 miles) all the way around, but you can do a shorter circuit around the smaller, inner lake, the Binnenalster, in about 1 1/2km (1 mile). On a nice day you can take to the waters of the outer lake, the Aussenalster. H. Pieper ([tel] 040/247578;, a boathouse just off Kennedybrucke in front of the Atlantic Kempinski Hotel, rents rowboats, paddle boats, and one-occupant sailing dinghies; prices begin at 15€ per hour. This outfitter is open April to late September, daily 10am to 8pm.