It is an easy albeit noisy (The A27 is the other side of the fence) walk along the footpath with the caches being within easy reach, apart from BB6 which is only accessible if the tide is not too high.
Good luck, the caches were put out using a Garmin Etrex H if any of the coordinates are out please let me know and I will adjust them.
Portsea Island is a small, flat and low lying island just off the south coast of England. The island is totally within, and contains a large proportion of, the city of Portsmouth. The third largest by population of any island in the British Isles after the mainland’s of Great Britain and Ireland, it has the highest population density.
To the east lies Langstone Harbour, and to the west is Portsmouth Harbour. To the south, it faces into the Spithead area of the wider Solent. A narrow channel, known as Portsbridge Creek, separates the island from the mainland.[1]
Three road bridges (the M275 motorway, the A3 and the A2030), a pedestrian and cycle bridge, and a rail bridge connect the island to the mainland, and a small road bridge joins it to Whale Island. In addition there are ferry services to Gosport (on the mainland), Hayling Island and the Isle of Wight. It gives its name to a relatively commercial and historic neighbourhood, adjoining the south-western "city centre".