Kempingas, Zemgale
This campsite (branded "Camping Vaivari" on its own site; still listed as "Nemo"/"Camping Nemo" on some booking platforms) sits in a pine forest about 200 meters from the Gulf of Riga beach in Jūrmala, roughly 15 minutes from the town center. It offers tent pitches as well as hookup connections for camper vans and trailers, plus shower facilities, free Wi-Fi, and free parking.