04-Sep-2017 -- It is training day at the European Radio Orienteering Championships and this confluence is on the training map. It is marked as out-of-bounds but a chat with the site engineer and I'm allowed to visit.
The new building is an accommodation block and part of the Lithuanian Olympic training facility at Druskininkai (A very nice place to visit).
Peering in through the window it looks like the point itself will be in the bed - what a place for a confluence hunter to stay.
The confluence is just a few hundred metres from public roads and in a publicly accessible forest in the zone marked with black lines on the orienteering map. Once all then fences are up you are going to need to qualify for the biathlon team to visit here.