Found this great article about insurance and skateparks. It says a "majority of cities wrap their skatepark liability coverage into their municipal liability policies, often with a $1 million deductible. A standalone policy for a skatepark allows municipalities to insure skateparks for $1 million in liability with a much lower deductible and eliminates the need to dip into their larger deductible for skatepark claims."
so... this just goes to show that the insurance issue is not one that can be used against the development of a skatepark. As with anything else, you just need to know what you're looking at and get underwriters that can assess the true risk involved with an activity.
