How to get there
Coming from Maidenhead, follow the A4094 into Cookham centre. Turn right into Odney Lane just past the left turn into the High Street.
There are only a very few spaces in Odney Lane but parking is also available a few minutes walk away in Cookham High Street.
Cookham Lock and Weir
Cookham Lock is 6.44 km (4.00 mi) downstream from Marlow Lock and 3.35 km (2.08 mi) upstream from Boulter's Lock. This is a nice and easy short walk just minutes away from the town centre. It leads through tranquil surroundings from the town to the lock where refreshments are available in the summer.
With their pleasent lawns, Formosa Island and Mill Eyat are also perfect for a bit of basking in the sun and small picnics. When you visit the lock, be sure to observe the closing times of the gate so you leave enough time to get back out. Cookham Lock is located on Sashes Island, one of the largest islands in the River Thames, but it is largely privately owned and only a small part is open to the public.
Around the lock
Open the gate at the end of Odney Lane and cross the foot bridge onto Formosa Island, the first of three adjacent islands. Follow the paved path through Odney Green to the next gate and bridge, taking you onto Mill Eyat.
It is only a short walk across the island, and just before the next bridge are toilets (not open all year) and information boards for Cookham Lock and Sashes Island. They offer an interesting overview as well as an insight into the lock's history. Walk over the bridge and turn right immediately. Follow the marked path to the lock.