it would be nice to see moving water like a stream in the park with moving leaves or trunks following the current, with waterfalls and bends, it could be used to move quickly from one point to another in the park, maybe with a canoe made of pine cones or a raft of stems doing rafting

otherwise even a water slide maybe using a rubber tube from some fountain in the park

I am a huge fan of this idea, definitely consider this, I think incorporating more aspects for traversal and just blending the landscape seamlessly could be very effective in a map that is 3x larger than grounded 1. Environmental/ecological features that assist the player in reaching destinations quicker but also look beautiful in the topography of the park is a welcome change for sure!!

The amount of insects/amphibians that could come with this is plentiful. Things such as frogs, tadpoles, small lizards. It could also be a barrier for higher tier areas, almost as if it’s telling don’t come until you’ve reached this until you have a canoe  or a boat of some sort. Great idea!