8.7
At 0.2 km from the Alster, Crowne Plaza Hamburg-City Alster By Ihg puts a lakeside stroll within easy reach. The hotel description lists a fitness centre, two restaurants, family rooms, free Wi-Fi and tea and coffee makers in all rooms; Uhlandstraße Underground Station is a seven-minute walk away. For this itinerary, I'd choose the water access over sleeping beside the airport. (hotel details ↗)