A long day into Poland ending in the big city of Warsaw
Vilnius → Białystok → Warsaw (8h, 510km)
Here's the other option where I made it to Druskininkai yesterday. This makes a shorter day with an earlier arrival in Warsaw. Especially if I didn't want to do the rest day in Warsaw.
Druskininkai → Biebrzański Park Narodowy → Warsaw (5h 375km)
