Sgorr Gaoith from Glen Feshie would be a good walk, in my opinion. Presumably you will have:
- a map. E.g. a Ordnance Survey 1:50 000 scale map, which you can buy locally in a newsagents shop or outdoors shop; trouble with OS maps however is the map sheet limits are sometimes not convenient. Another map company is Harvey, e.g.
https://www.harveymaps.co.uk/acatalog/Cairngorms-YHBMCG.html, also should be available in local outdoor shops
- a compass (maybe a good Finnish one like Suunto?)
and you know how to use the map and compass
That is a good walk because there is a nice path about half of the way, then if you can walk eastwards alongside a stream you'll get to the top. You'll know if you've walked past the top, because you will be falling off a cliff into the loch way down below.
Then if you turn right and go south you can reach another path which takes you back down to Glen Feshie. Not much to it really. Enjoy.