This cache is located close to the Castle Tennis Club, a few yards away is the The Castle House built in 1822, which is one of Dunoon’s most historic locations, it opened as a museum in1998. The cache container is a small plastic tube, please return this to the same place you found it, stealth is required so watch out for muggles, it's quite a busy area at times ! The GPS can be a bit erratic due to the trees ... Bring a pen or pencil !