I haven't seen this photo before. Where was it taken? And who is the woman sitting beside Alexandra?
The caption (in Russian) says that it was taken on board he "Mezhen". That was the river ferry boat that took the Imperial family up the Volga from Nizhny Novgorod to Kostroma during the tricentenary celebrations in 1913.
That is when they visited the Ipatiev Monastery, where Michael, the first Romanov sovereign, was proclaimed Tsar in 1613.