The island will accept a negative antigen test taken 24 hours before departure or a PCR test taken 72 hours prior to travel.
All travellers must also submit a health declaration form to Grenada’s Ministry of Health.
Grenada Tourism Authority chief executive Petra Roach said: “We’re delighted to make it even easier for UK travellers to explore Grenada. Offering an antigen test means that visitors have extra flexibility, choice and a more cost-effective option to visit our islands.
“Throughout 2021 we saw strong visitor numbers from the UK, and we believe the measures announced today will boost numbers further in 2022.”