Fly! There is a small airport that has direct flights from San Francisco and Los Angeles. It's amazing, there are only 2 gates! See the travel page :)
There are plenty of cool Airbnbs in Arcata, also Hotel Arcata is centrally located, right on the plaza only two blocks from the Party venue, not super bougie, but it's clean and there's the best sushi in town off of the Lobby. See the travel page for specifics.
The National Park is about 40 minutes north of Arcata, but the State Park is only 20 minutes north in Trinidad. There are Giant redwoods all over, but if you'd like to see the tallest, you'll have to head to the National Park. Fern Canyon is also INCREDIBLE. There is lots of Natural beauty.
Yes! Although by 8 o'clock we would like to invite you to go tuck them in and then come back to party. Please let us know if you need help finding a babysitter!