KAIRA is actually closer to Siilasjärvi, rather than Kilpisjärvi, although you are unlikely to find the former on the map and Kilpisjärvi is the name of the nearest town in any case. Between Siilasjärvi and Kilpisjärvi is a small white-water river called Siilasjoki, which drains the former into the second.
There is a small path that runs up to Pikku Malla from about 1 km near the KAIRA site. There is now a new timber bridge that crosses the rive and heads up the mountain.
No other LOFAR site has such picturesque scenery!