Camping? You can reserve state park camping sites but note that state park campsites are not set up for camping vehicles: https://dlnr.hawaii.gov/dsp/camping-lodging/kauai/
Hawaiʻi’s State Park campgrounds are not set up for camping in
vehicles, including campers, vans and trailers. Sleeping in vehicles
in our campground parking lots is therefore not allowed. The single
exception to this rule is at Waiʻānapanapa State Park on Maui, which
has a small area designated for camper vans.
County of Kauai campgrounds: https://www.kauai.gov/Camping
Check maintenance closure days and note that a number of campgrounds are reported closed because of storm damage including:
Haena Park (CLOSED UNTIL FURTHER NOTICE DUE TO STORM DAMAGE)
Hanalei Blackpot Park (CLOSED UNTIL FURTHER NOTICE DUE TO STORM
Check with the camper van rental agency for possible vehicle camper sites. For example: https://www.kauaicamperrental.com/kauai-campgrounds.html
The vans are allowed anyplace on island (except Polihale State Park
and other dirt roads, unless specified) but camping must be done in
campgrounds. There are 6 county campgrounds, with 1 allowing car
camping, 3 private campgrounds which all allow car camping and 1 State
These private campgrounds are some of the best Kauai has to offer and
are not well known. No permits required. Reservations can only be made
online for Kumu camp and should be gotten in advance, while the YWCA
does not take reservations but just needs a call a few weeks in
advance to check for availability. They are usually quieter, cleaner,
you can sleep in the vans and they have hot showers!
You need to camp in permitted areas (or private camp areas):
Laws prohibiting unpermitted camping are enforced by county park
rangers during frequent early morning raids at public spaces and
ignored by prosecuting attorneys, who refuse to pursue cases against
people whose only crime is not living in a house.
Kauai County codes require anyone who camps on any public park between
5 p.m. and 10 a.m. to get a permit from the Department of Parks and
Recreation, but the statute limits the number of days to 60 a year.
It is against the law to sleep in a car overnight anywhere on Kauai
other than the public parks....