Abstract: The invention has to do with a hydro-technique architectural system, capable to annihilate any tsunami waves size, destined in principle to the protection of people, animals, infrastructure and the existent architecture and the coastal environment of seas and oceans. The invention is composed of a PSS system made of one or many reinforced concrete tubes (preferable having a rectangular section) (A), for discharge/intake the tsunami wave (TW). PSS system contains an intake gate (B), for the (TW), an evacuation gate (C), and two floaters (D) and (E), permitting the (TW) to enter and exit in and out to the PSS system. The entire tsunami protection system, may be built using many PSS tubes with one or several intake and evacuation gates as necessary. The PSS system can also be used for protection against tidal waves and coastal erosions.