Crieff Hydro Hotel have amazing an amazing Livery Yard on their premises! Based in Crieff, Perthshire - they have recently been refurbished too!
Crieff Hydro Riding Centre and Livery Yard has its own website http://hydroriding.com/
:)
It's probably not as exotic as some of the other posts in this thread, but me and my friend are just back from an amazing horse riding holiday to Crieff Hydro Hotel.
They have new and improved Riding Centre and Livery Yard - we went for 2 nights and the hacking around the Strathearn Valley...
Derby House in Glasgow was great - but yeah shut down now! Think they have a good online shop too!
I recently ordered rugs off a website called Tic Tac Equestrian - some great deals! I would def recommend - and the girl Lauren that runs it is fantastic!
http://www.tictacequestrian.com/