I’ve just been to Arthurs seat, cycled up the radical road and then ripped back down to the lake. Too many walkers etc (etc being buckfast brigade with shirts off) to make it worthwhile, reckon an early morning ride would be better.
I searched for notices about cycling, the one near the small bulding at the front of the parliament says ”mountain bikers – please refrain from cycling off the green paths and roads” there is a list of the regulations at the holyrood park education centre in the park on the left heading towards the meadowbank exit which as Geoffj says about only says that more than 2 abreast is prohibited.
The fine is a max of £20 anyway so no big deal…