The parking lot at Hope Slide has very dark skies. The glare from the few street lights on the highway can be annoying, but mostly isn’t a big problem.
Views low to the east and west are blocked by mountains, but the view to the south is very good.
It takes about 2 hours to drive to Hope slide from Vancouver.
Camping is technically not allowed, but no one is likely to bother you if you are quiet and take any garbage with you when you leave.