We went on their pontoon boat Squam Lake tour. It is a 90 minute tour, and is quite enjoyable. This lake has lots of water fowl, including lions, cormorants and eagles. It was also used for the filming of "On Golden Pond". The guide was very knowledgeable. The only downside was that the nature center was hard for us to find. Their are signs, but they are small, hard to see from a moving car. Google maps took us to the wrong place using the street address. But, I would definitely go again.