Finally got to the end of the Sestroretsk bike path – Zelenogorsk – Serovo (Leningrad region, Saint Petersburg). It turned out that it ends with a bridge over the Black River and it looks like this:
The total length of the bike path is approximately 31 km. There and back it turns out 62 km.
It turned out that in the Repino area, where the path used to be cracked and heaving in places, the other day they laid a new smooth asphalt. Now it's a completely different matter, otherwise it was impossible to ride on rollers. It remains to fix the asphalt in Komarovo and it will be generally cool.
One nuisance — flocks of midges hang out in places. If your mouth is open while riding, then you can swallow them. Also, insects fly and larger in size and every minute someone knocks on the forehead or gets into the eye.