Gardur is the tip of the Reykjanes penninsula and has 2 sides that can be surfed, giving some flexibility with the wind. Needs a considerable swell to swing around the corner and get the north-facing reefs working in SW winds. Big outside lefts remain unridden but smaller waves form up in front of the little harbour and are better at higher tides.
Kelp and currents. Drive through Gardur and park near the 2 lighthouses.
Drive through keflavik and head to the town Gardur. Basically drive through the town and go as far West as you possibly can. At the end there are 2 lighthouses and you are there.