Kauai Fun Vacations - How much money should I plan on saving for a vacation to Kauai for a family of three?

How much money should I plan on saving for a vacation to Kauai for a family of three?

I have family that live there so we won't need to get a hotel.

Well i am flying to Honolulu in 2 wks. So i would budget around $600.00 per person for flight. That is flying from the east coast. Then whatever tours you may want to take. Look on-line at tours available & get an idea what they cost. Hope this helps. Have Fun. Aloha.
Your ticket are going to cost anywhere from $400-500 per person. Depending on your activities you do, it can be $0-whatever it is. Food is going to cost the same from the mainland. Don't forget your transportation and tips. For some reason, tips are appreciated there more than the mainland. So my answer to your question is bring enough, you can always budget.