Please let us know your plans by May 5th.
Comfortable enough for an outdoor wedding; nice enough to take good pictures. The grass can be a little soft and the terrain is uneven at the park, so stilettos might not be the best choice. (But wear whatever makes you feel good!)
Yes - we'll have lots of fun stuff to do! There isn't a playground at the park, so feel free to bring other games or toys to entertain your little ones.
It would probably be most convenient to use Lyft or Uber, or rent a car. Denver also has a pretty convenient public transportation system, with bus and light rail lines. Definitely coordinate with other people coming to help save on costs.