Green Island is a small island just off Cunjurong Point and can be easily accessed at certain times of the day. Otherwise, you may have to swim or wade to the cache. The cache is located just off the path that runs along the top of the island and is easily accessible once you have crossed the isthmus.
Access to the cache is best at the time around low tide as the isthmus that runs between the mainland and the island is fully exposed and the walk is easiest. Please be careful whilst in the area and watch out for approaching muggles as it is a bit of a popular area. The cache itself is a small sistema container underneath a log up on top of the island. You can get to the cache by following paths so please try to minimise environmental impact.