Akureyri if you want time in town as well
Akureyri is the easier choice to combine with cafés, shops, a swim or dinner. Tours leave into Eyjafjörður, so the sailing and the fjord become part of the same day.
Choose a harbour and spend a day on the water.
From Lundsskógur, you can leave from nearby Akureyri and combine the sailing with time in town, or make Húsavík and Skjálfandi Bay the focus of the day. The better choice depends on the trip, the departure time and the conditions while you are here.
Akureyri is the easier choice to combine with cafés, shops, a swim or dinner. Tours leave into Eyjafjörður, so the sailing and the fjord become part of the same day.
In Húsavík, tours leave from the harbour onto Skjálfandi Bay. North Sailing is one of the operators based there. Give yourself time around the waterfront before or after the trip rather than treating the town only as a departure point.
Tours also leave from Dalvík and Hauganes, further out along Eyjafjörður. Check the operator's current departure times, boat type, age restrictions and clothing advice. A larger boat and a small-boat trip can feel very different, so choose the one that suits your group.
Wildlife and sailing conditions are never completely predictable. If whale watching matters to you, putting it earlier in the stay leaves room to move the booking if an operator changes a departure. Dress warmly even if the morning starts in sunshine.
After a few hours on the water, come back to Lundsskógur, make dinner and go through the day's photographs by the glass wall.
Choose Akureyri if you want to combine the sailing with a day in town, or Húsavík for an outing centred on Skjálfandi Bay. Current trips, weather and departure times also matter, so compare the options for the dates of your stay.