Parking is only available near 'Brighouse Bimble 1 - The Y Tree', where there are also public toilets and a picnic area. None of the caches are suitable for a drive by due to the very narrow country lanes.
You will come across cattle and sheep on your walk, and quite possible the occasional roe deer as well as a variety of other local wildlife and birds depending on the time of year.
Some parts of the walk get muddy so please wear suitable footwear. Note: There's a map of the series route in the gallery for BB1.
From BB3 take a left turn (or if you stopped to admire the view of the bay, then it will be right!). You will come to a fenceline. Follow the path to the right past the drinking trough and you will pass through a gate to join a well marked track. You are looking for a regular sized metal container, with enough room for small swappables.