We like to take them to the local mountains or beaches and ride them on the bike / hiking paths. California has a law written for Segways and they are allowed on side walks, etc. Although, they do not mention the name. We used the at Lake Havasu two years ago and no one said anything. We have never had an issue, but then, we try to respect others and steer clear of their path.
This post is opinion based on experience.
2015 Hurricane 27K
2013 Sea Ray 220SD