1. The navigational situation may contradict reality due to the temporal unavailability of coordinated data caused by intensive construction and hydraulic engineering works in the area covered by the chart. Mariners are requested to exercise particular caution.
2. With the winds from NE low-level of the surge (level lowering) up to 0,5 m is observed.
3. On edges of Kerch-Yeni-Kale Channel and under buoy No. 4 on Kerchenskyi Approach Channel there are underwater obstructions in form of submerged buoys and anchor gears with depth above unknown.