Skinny Dipping Spot:

Peffersand Nudist Beach (unofficial) is at the northern end - shown on the left in the image below, though when then kids are in school the beach is quiet, and so naturist tend to venture further towards the Ravensheugh Beach end - which I totally recommend as there are no rocks in the water in that section. 

Best Time To Go:

Hot midweek days in the summer are perfect for this beach. There is no-one around except the occasional dog walker. So you can venture further away from the Peffer Sands towards the Ravensheugh Beach end... shown in the image below. But do avoid school holidays and weekends.... unless the weather is cold, as it just won't be feasible to walk naked along the beach without raising a few eyebrows. The nudist beach of Peffersands is a little further along before the burn.. but I prefer a sandier location show below. 
The tide does go out really far so it is best to time your swim around 1 hour either side of high tide - Check the Tide Times. 

Safety:

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 (see map). SEPA monitor the water quality just up the coast at Seacliff - Check Water Quality

Best route to the beach....  Directions to Ravensheugh Sands:

From the Car park take the first left... If the gate is not open go around to the fence behind the bushes. 

Walk to the end of this path.... and then carry on past a gate. (Don't turn right along the road as that'll take you to the Log-Cabin)

Go beyond this gate and then follow the woodland pedestrian path to the right... 

Follow this path towards the beach.. (ignore the one going the other way as that is to Harvest Moon Holidays -- but a sign tells you that)

It doesn't take long to get through this woodland area... though it can be a little muddy if it has been raining... 

You'll eventually see the dunes in the distance.... keep on the main path and go over them. 

Once you get up onto these dunes you'll see the beach.. 

From here just head to the left... the further along you can go the better it is to strip off without anyone else coming along.. 

Recommended Links:

Edinburgh Skinny Dipping Stories facebook group.

Photographs

Cheeky Skinny Dipping Photos