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Photo: Luxtaythe2nd, CC0 via Wikimedia Commons
Although not much remains of her today, the remaining structure of this wreck from 1958 is in very shallow waters where you can easily walk or swim over.
ORP Wicher was a Project 30bis destroyer, transferred to the People's Republic of Poland from the Soviet Union in 1958. She was built by the Zhdanov shipyard in Leningrad and originally commissioned into the Soviet Baltic Fleet as the Skoryy ("Rapid") in 1951, and transferred to Poland in 1958 together with a second ship, ORP Grom. The ship was decommissioned in 1975, and scrapped. One of the 130 mm guns is preserved in the Polish Navy Museum in Gdynia. Remainings of the scrapped vessel were sunk at the beach in Hel as breakwater, where they remain to this day.
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Fokarium
Part of the Gdańsk University. There are performances for tourists but the goal of the sanctuary is to grow the seals and to set them free. The seals are fed at 11:00 and 14:00. During the summer at 16:30 too. There is also a museum part in a small building on the side of the pond which is often overlooked. Go inside and maybe you will be able to see seals from the bottom.
Muzeum Rybołówstwa
In a 15th century Gothic St. Peter and Paul Church. From the top of the church tower you have a wonderful view other the city, the beaches and the sea.
Muzeum Obrony Wybrzeża
Very interesting blockhouses, exhibits and a narrow gauge railway.
Latarnia Morska
41,5m tall lighthouse open for visitors from May till September