What a lovely day!
this geocache shouldn't be too hard fine considering as only one main place it can be so good luck finding it!
Brownsea island
Some of Brownsea islands history (not much):
Brownsea is the largest of the islands in Poole Harbour, which is the second largest natural harbour in the world.
Humans have been active in the local area since at least the Iron Age (750BC – AD43). In 1964 two sections of a 33-foot Iron Age log boat were discovered just off Brownsea. Carbon-dating revealed that the log boat had been preserved by the marine silts for almost 3,000 years. It is now on display in Poole Museum.
In the 7th century Brownsea was owned by Cerne Abbey. It is believed that a hermit monk lived on Brownsea. His role was to guide boats into the harbour with lit beacons, and provide spiritual welfare for sailors. Gradually the population grew and by the 9th century a chapel belonging to the abbey stood on the island.
In the 1970's, seven bodies were unearthed near Church Field while renovation work was being carried out at the nearby farm cottages. Analysis revealed that they were thought to have died between 1030 and 1350. This coincides with the period when the abbey was active and suggests that the chapel may have stood nearby
Brownsea was not recorded in the Domesday Book (1086), which suggests that there was little of value on the island at this time. However, records show that the monks were granted rights to keep any items washed ashore from shipwrecks.