It's our old haunt when we lived in England. Very convenient for Studland and a great bunch of genuine naturists.
They take caravans, motorhomes and tents and have a few (though, in all honesty, pretty basic) caravans for hire.
Run by Reg and Hazel who live on site.

I've been going there every year for about 10 years now.
I'll be going again soon (29th July - 15th August).
You probably read about St. Annes in the leaflet that comes with the spring issue of BN mag.

Here is some extra info.

Address:

Reg & Hazel Russell,
St Annes Cottage, Horton Road,
Three Legged Cross,
Nr. Wimborne, DORSET.
BH21 6SD

Tel: 01202 825529

The campsite is called 'St. Annes's Cottage' and is in Three Legged Cross, Dorset
The site is fairly small and basic, but is very friendly.
There are toilets and mixed-sex showers(free). A large fridge/freezer is provided for camper's use, and there are washing-up facilities. There is a chemical toilet disposal area. (Green toilets products ONLY, not the blue stuff)
The site caters for tents and caravans/motorhomes, electric hook-up is available.
It is NOT compulsory to be nude, quite a few people don't.

There is no shop on site, but a large Morrisons is about 5 mins drive from the site, where there is also a very nice pub/restaurant and an award winning fish and chip shop.
The New Forest and Bournemouth/Poole are fairly close by, and Studland naturist beach (the best UK naturist beach) is about 30 mins away.

The site is managed by Reg and Hazel Russell, a very friendly couple.
There is no web site currently.

Charges for 2011  I THINK are £10/night for a caravan (with awning)/motorhome or tent.
There is an extra charge for electric hookup.

Hazel (she handles all the financial side) would prefer a deposit of £15.
The site can usually cope with late bookings, so if you decide to go this summer, it's not too late!

I hope this helps and if you do happen to be there at the same time as me, be sure to look me up. Ask Hazel for Brian, I'll be in a largish tent shaped a bit like a pagoda, (very distinctive looking)

I have just been down to St Annes Cottage for a few days.
It was my first visit there and I found the site to be just as Brian R describes it.
All of the folk that I spoke to were lovely and the weather was great.
It really is very quiet and relaxed, although there is the occasional scream from the odd motorbike racing down the road outside.
I'll be back! 🙂
Oh, yes. They do accept pet dogs, as long as you keep them on a lead at all times and clean up after them.
It cost me £24.50, with electric hook up, for 2 nights.

We spent a few nights here the other week, really enjoyed it. We hope to get back there next year for a longer stay. 

Had a good week there in august... everything apart from the weather was excellent

I realise this is an old topic. However my wife and I strongly recommend this camping/caravanning site for naturists.
Easy travelling to Studland, easy access (no narrow lanes to get there) and great views.