Catalina Island (California)
We decided instead of an excursion in Catalina (water was too cold for snorkeling)to rent a golf cart and explore the town of Avalon. 1 hour is all you need to see everything and still have time to stop and takes pictures. $40 for the hour was well worth it and there are at least 3 golf cart rental places right on the main street.
You can wander the downtown section of foot- lots of little cafes and restaurants as well as tons of gift shops. There is a pretty little beach down at the marina where you can sit and eat ice cream and watch the seals. We loved watching them and even had a few dolphin sightings.
If you are going in the late spring or summer I would encourage you to do some of the water excursions-we were not prepared to love the quaint town of Avalon so much and wish we had been there in June or July to really experience all it has to offer.