Liam - I have just noticed that I got a bit confused in my reply to you! There will be no problem YOU using the pool at the Perun. Your hotel is ideally situated at the start of the main street and others in our group stayed there. Excellent reports from them about their hotel, so it looks like you are all in for a great time.
The Perun is about a 15/20 minute walk from your parents hotel. I think the brochure was a little economical with the truth there! In the Perun you get bath robes & slippers to wander round the health suite in. Lovely log fire in the lounge bar. The hotel has a Mehana (opposite) which does brilliant food & the atmosphere is cracking!
Thanks for the report. We are due to go to Bansko on 27th Feb (only 30 working days to go) and like many others I did have a few doubts about the resort and the hotel. You seem to have had a brilliant time, lets hope the same goes for the rest of us.