Due to its free connection to the sea, the water resources in the lake and its surface area depend on the direction and strength of the winds, especially during storm surges.

[3][11][12] The length of the shoreline at the average water level is estimated at 11.7 km, and this line stands out in comparison to other Polish coastal lakes.

[17] On the eastern, southern, and western sides, extensive reed beds intersected by a network of ditches adjoin the lake.

On the shores in the northern part of the lake near the outflow of the Regoujście, one of the three sites in Poland of the critically endangered plant species, the dwarf spikerush, was located.

[20] Over Resko Przymorskie, 13 breeding bird species have been observed, including 4 classified as endangered in at least one scale (international, national, or regional) – the greylag goose, common goldeneye, bearded reedling, and red-backed shrike.

Other bird species appear periodically during migrations or sometimes in winter, or they utilize the lake waters throughout the year as foraging grounds, for example, the white-tailed eagle.

During migration seasons, they stop quite abundantly, in flocks ranging from tens to hundreds of individuals: grebes, Eurasian coots, common cranes, gulls, geese, and ducks.

[22] As a result of research conducted in 1996[12] and 2003, the waters of Resko Przymorskie were classified as outside the classification system, and the lake itself was deemed not resistant to external influences.

Water quality is determined by strong phytoplankton blooms, as well as high concentrations of biogenic elements and excessive amounts of organic compounds.

[25] According to data from the Provincial Inspectorate of Environmental Protection [pl] in Szczecin from 2004, common reed is harvested in many places around the lake.

In Dźwirzyno, at the mouth of the Błotnica river into the lake, a wooden marina with a landing has been built, where pedal boats and yachts are available.

South of the lake, the Coastal Hiking Trail [pl] (red, Świnoujście–Żarnowiec) runs through Mrzeżyno, Roby, Karcino, and Dźwirzyno.

According to some sources,[13] in 1456, the inhabitants of Kołobrzeg attacked Regoujście militarily, sinking ships with a cargo of stones in the port, thus cutting off Trzebiatów from access to the sea.

However, the initiative ended in scandal due to "stolen literature", and after intervention by the gendarmes and the Prussian Central Office for the Preservation of Natural Monuments (German: Prussischen Zentralstelle für Naturdenkmalpflege), the facility was discredited.

[32] Until 1935, about 0.5 km upstream from the mouth of the Old Rega into the lake, there was a fishing village called Kamp, where cottages covered with thatch stood.

In early spring (most likely in the last days of March), when the Red Army troops reached the shores of the lake from the east, a German transport aircraft, the Junkers Ju 52, appeared with the intention of landing.

The Junkers crashed into the lake a few dozen meters from the shore held by the Germans, who, despite the shelling, attempted to retrieve the aircraft from Resko.

German prisoners later testified that the transport aircraft had departed from Königsberg (Kaliningrad) and was carrying an extremely valuable cargo.

He described the events related to the sinking of the aircraft in Resko Przymorskie along with a map and suggested that the sunken Junkers may contain crates with the Amber Room.

The group leader, Boris Waszkiewicz from the Polish Scouting Association, explained that despite using trawls, ejectors, magnetometers, and military equipment, they encountered many difficulties, particularly with visibility and a three-meter layer of silt.

[34][35] The Polish Press Agency reported that on 18 August 1989, another search for the remains of a German aircraft in Resko Przymorskie began.

[34] At the beginning of May 2009, during a three-day diving expedition in Lake Resko Przymorskie, divers found elements of a German aircraft from World War II.

Mirosław Huryn, the CEO of the Museum-Fort "Rogowo" Foundation, stated that many indications suggest that the found parts are fragments of a German seaplane, the Dornier Do 24.

[36][37] This aircraft most likely carried 72 German children and caregivers, who were attempting to evacuate on 5 March 1945, from a nearby airfield to Stralsund, Germany.

The plane was hit in the engine by Soviet artillery fire and crashed into the lake, in front of thousands of other children and caregivers gathered at the airfield.

[2] Linguist Mikołaj Rudnicki proposed the name Resko to designate the Camp lake (Polish: kęp(a)) when studying the etymology of the name of the Rega river in 1935.