I notice it says they close at 7pm, can we still walk the trail past then? Or do all the entrances close?

The gates close at 7pm.

Entrances all close at 7pm. We were able to park around 6:30pm and then stayed for the sunset. So you can still be in there past 7pm but it really does get dark so be careful!!

Yep, I think it is closed and difficult to ride a bike through the park.

After seven main entrance to the park will be closed. Will be possible use some of sideways byways.