Destination
Tricity
Tricity (Gdańsk, Sopot, Gdynia) + Kashubia & Hel
Coastal region easily arranged as an 8‑day loop from Warsaw (roughly 3–4h drive). Base in Gdańsk or Sopot and fill the week with Old Town and Hevelianum, Sopot pier + aquapark, Gdynia Aquarium, a full day on the Hel Peninsula (seal sanctuary, beaches), and 1–2 family outings into Kashubia (Szymbark attractions, open‑air museums). Plenty of family hotels/resorts with pools and playgrounds, and city restaurants serving pizza, sushi and Mexican — ideal for balanced-paced family days. (Note: you mentioned 2–3 day stays; these plans expand those hubs into an 8‑day regional trip with varied day trips.)