Hi Jason R. We did this recently and the purple track round trip from the main carpark is about 1 hour. The Redwoods were in two groves we went through and would probably be between 30-45 minutes in. I hope this helps

You can walk for about an hour one way, (low tides). There is a time chart at the entrance to check the timing.

Depends on whether you're carrying a lot of equipment or have younger kids. I'd say to allow 30 minutes if so. Maybe a bit more if you have some among you sort of side-tracking off the trail from time to time - I would suggest that you take a snack and a wine as well - on a nice day the place just lends itself to a peaceful stop with refreshments while the kids run around nice and safe

You can drive right to the top if you like, plenty of car parking at the top. The road to the top is quite narrow and windy however, so take care. However if you do wish you can walk to the top. Wouldn't take long for someone of moderate fitness to walk to the top.

Just about wide enough but might be too steep