If you are staying at Lake Nkuruba for a not too distant stroll around the area you can't go far wrong in wandering south of the Village of Rwaihamba. Carry on for a few clicks you will come to a stretch of the road where a lake lies either side of the road. Each lake seems completely different from the other. As you approach from the north the lake on the right, Kifunka is a completely different colour and at a much higher level than Nyinambuga the lake on the left.
Carry further on down this road and you will reach the turning off to the rather plush Ndali Lodge.
Anywhere in this part of Uganda you are likely to come across Colobus Monkeys. In Lake Nkuruba you will see them daily. In Fort portal town it is possible to see them in the trees at the top of town near the Toro club and even on the bus from Kampala it is not uncommon to see a black tail hanging down from a branch of a tree.
From Lake Nkuruba there are many walks that you can take in a multitude of directions. A fairly straight forward one is to walk to the nearby lake of Nyabikere.
This is easy because you follow a track all the way until you come to the paved road near CVK camp on Lake Nyabikere. You set off from Nkuruba and head off along a track heading east the track winds its way between shambas first up hill then down before you will see Lake Nyinabulita on your left. The track will then flatten out before you cross a small bridge where shortly after you will reach the paved road. Turning left after a short distance past the tea plantations you will pass a few small dukas before you reach CVK camp on Lake Nyabikere.
If you can find it, not far from Fort Portal. It is a tiny crater lake. you an do a half day hike that will take you through one or two more small lakes and also large volcanic hols - very deep.
If the weather is nice, this could be a nice day out.