Ebb and flow

Description:
Regular script, not bearing semantic loading, but fans of reality (and not only) would like. Now there are in the game
such natural phenomena as the ebb and flow. Unlike programs for editing the level of water, the water comes and goes smoothly,
without disturbing the games, and (most importantly) changing the water level only in sea, Lake at dam, swimming pools on the sites and in zadniâh
not affected, also does not affect the existence of waves (as opposed to a program that was one level everywhere).

Schedule: Tide: 09:00
Low tide: 15:00
Tide: 21:00
Low tide: 03:00