The last fragments of the road disappear a bit in the meadow and you can't see where exactly the road leads. You should follow the directions to try to get to the tower from the left side.
In the autumn of 2025, probably the best preserved observation tower in the vicinity of Łapy in the Narew National Park, with good access via a dirt road from Łapa-Szołajda and easy access to the very bank of the Narew River - turn left onto a dirt path, about several dozen meters before the tower.