Hawaii Magazine Beginning on April 5 visitors to Kauaʻi can bypass quarantine with proof of a negative COVID-19 test. Mar 8, 2021 Visiting Kauaʻi just got a little easier. Starting April 5, the Garden Isle will rejoin the state’s Safe Travels testing program, which would allow travelers to bypass Hawaiʻi’s mandatory 10-day quarantine with a negative COVID-19 test taken 72 hours before arriving in the Islands. This is a big step to opening up Kauaʻi to tourism. On Dec. 2, Kauaʻi had opted out of the pre-testing travel program, and the only way visitors could bypass quarantine was to stay in a “resort bubble” or spend time on another island before traveling to Kauaʻi.