IMPORTANT: Swimming close to the shoreline is recommended when the tide is going out. This is because cross currents and riptides can be strong and difficult to identify from the beach. So please make sure you can stand up to walk out of the water. Also, the water can get quite rough on windy days so just take care.
You may also spot the occasion seal swimming in the water too. The tide goes out very far -- avoid the temptation to pitch on the shore for swim when it is out as you'll get marooned when it comes back in either side of you.
The water quality is amazing... and no need to worries about sewage here as there are no overflow pipes entering the water: https://forthriverstrust.org/sewage-outfalls-around-the-firth-of-forth/ (see map)
SEPA monitor the water quality just up the coast at Seacliff if you want to check the data: https://www2.sepa.org.uk/BathingWaters/ViewResults.aspx?id=4403
From the Car park take the first left... If the gate is not open go around to the fence behind the bushes.
Edinburgh Skinny Dipping Stories facebook group: https://www.facebook.com/groups/skinnyswimmers