BORK Kayak (aka BORK You) Surfski - Camps, Lessons, Club (youth 8-18 sprint kayak, older 16+ surfski) for frequent local paddlers. Two Locations (Oeiras Harbour just west of Lisbon, Sesimbra)
Duoro Academy / Paddling Center Douro River Porto (“won't necessarily make reservations online, but we walked in during the work week and reserved a couple of their plastic Nelo 510s for later in the week” Denise Weeks October 2022 video) Outrigger canoes also
Ofir Run Viana do Castelo - Praia de Ofir (Fao) 19 km Downwindable.com there are some reefs close to Praia de Ofir that you need to go inside or outside of but not too close to the irregular breaking waves. There is a line of fishing buoys that you can follow that signal somewhat shallower water and can help with some push from slightly steeper waves on calmer days.