Mason couldn't quite figure out the purpose of the tunnels. He was like, yeah...this is nice but I'm not going in there. He's not a huge fan of water, but he did get his feet wet a little.
I guess he thought this was a giant dog and he had made a new friend. He was disappointed. They also had these fake flowers and bushes around for the sole purpose of peeing upon. Mason took full advantage of that and peed on all of them.
In the end, he was a very happy dog. We're so lucky to have such a nice park right down the road from us. We'll be going again soon, although not too soon because I think Mason is still wore out.