Reykjanes Peninsula One-Day Drive: How to Link Blue Lagoon, Geothermal Areas, the Lighthouse and the Airport

Which day suits this route?

The easiest version is a full daylight window after arrival, or a departure day with an evening flight and a confirmed car-return plan. After landing on the first flight, collect the car, buy water and simple food, then drive south across the peninsula; put the first main activity in the morning and decide in the afternoon whether to add a headland. On a departure day, reverse the order: see the farthest sight in the morning, then work back towards Keflavík after lunch. Do not spend the final minutes being battered by wind at Gunnuhver before remembering the fuel gauge.

If you are starting in Reykjavík, read the Keflavík and Reykjanes destination page first, because the decision is also where to sleep tonight: near the airport, near Blue Lagoon or back in the city centre. With only three to four hours after arrival, use the short version of Blue Lagoon on arrival or departure day rather than forcing a full peninsula circuit.

Read the map, then reduce five locations to three

Keflavík Airport is in the peninsula's northwest, Blue Lagoon sits towards the central east, Seltún is inland near the south coast, and Gunnuhver with Reykjanesviti lighthouse lie on the southwestern headland. These places do not form one straight coastal line; Route 41, Route 43, Route 42 and the headland roads run in different directions, and snow or strong wind means the minutes shown on a map are never a guarantee. The map below shows the actual orientation so you can decide what to drop before setting out.

ICENAVI · REYKJANES DAY LOOPKeep one distant stop; the rest will link more cleanly

Keflavík Airport (KEF)Pick-up / returnBlue LagoonTimed entrySeltúnGeothermal boardwalkGunnuhverSteam landscapeReykjanesviti lighthouseShort headland stop

Airport: keep time for refuelling and returning the car.Blue Lagoon: entry is timed; Seltún's walking time cannot fill that slot.Headland: in strong wind, cut the lighthouse before cutting the return buffer.

Three versions: choose one main activity

For the Blue Lagoon version, work backwards from the entry time. For a 14:00 entry, put car collection, food, luggage and the drive first, with roughly 30–45 minutes of flexibility; after bathing, add only one stop that does not involve a queue. Do not treat Seltún as a fifteen-minute extra: the boardwalk has changes in level, and wet ground, photography and changing outer layers all take time.

The Seltún version is more flexible, with about 30–60 minutes for the short stop. You can allow another 20–40 minutes at Gunnuhver for the steam and mud pools, but stay behind the barriers. It suits an arrival day that still has daylight and travellers who do not want a fixed ticket as their first commitment. If you want a soak, compare Blue Lagoon and Sky Lagoon for the return journey, then decide whether a timed booking deserves space in the route.

The headland version gives a strong visual payoff but is most exposed to wind. There are no large visitor facilities around the lighthouse, and a gusty day can make a long stop uncomfortable; treat it as a 15–30-minute photo stop so one headland does not consume the afternoon. Before driving from the headland to KEF, refuel and then begin the return-car process. Do not leave finding a fuel station until you are near the airport.

Count door-to-door time, not only driving

From KEF to Blue Lagoon, the driving time on a map covers only time with the wheels turning; add the rental desk, luggage, familiarising yourself with the car, setting the navigation and parking. Reykjavík to Blue Lagoon needs the city exit and return counted separately. If you still need to reach the airport, do not fold that round trip into the same clock as a city-centre stay. Blue Lagoon to Seltún links by direction, but it is a transfer across inland roads, not the next space beside one car park.

A useful calculation splits every stop into four parts: reach the parking space, walk to the viewpoint, do the main activity and return to the car. Write in at least 30 minutes before Blue Lagoon entry and the changing time; allow 45 minutes each at Seltún and Gunnuhver, 30 minutes for a headland stop, then add lunch and a weather buffer. If the plan already exceeds nine hours, remove one location instead of trying to recover the time by starting earlier.

Seasonal conditions can reverse the most workable direction

From May to August, long daylight lets you leave the headland and geothermal areas later, but it does not double the road quality, wind or your energy. From September to April, check wind speed, snowfall, sunrise, sunset and road conditions first; on short-daylight dates, place the main activity around midday and add the headland only if there is still light on the return. In winter, crosswinds or wet snow can make both the Seltún boardwalk and the headland poor choices for a box-ticking stop. Blue Lagoon also needs time to leave after changing.

If volcanic activity changes access to roads or trails, follow the roads and sites open that day. The Fagradalsfjall volcano itinerary needs a full half-day and cannot share the same spare window as Blue Lagoon, Seltún and the headland. A trail being open does not make it suitable to insert today: parking, walking and the return plan are much more demanding than a short geothermal stop.

Your accommodation can remove one stretch of road

For an early flight, Keflavík is more practical than Reykjavík: you exchange the final city's dinner for a short drive and easier refuelling. Filter the Keflavík Airport accommodation options by car-return time and breakfast arrangements; if you plan to rest immediately after Blue Lagoon, one night near Blue Lagoon removes the long transfer after bathing.

Accommodation on the western side of the peninsula suits an arrival day when you want to collect the car and rest before exploring the south coast the next day. Reykjavík offers more restaurant choice, but you must recalculate the return to the city and the later airport direction. For two people, use about 18,000–35,000 ISK per night (approximately HK$1,050–2,050 / NT$4,300–8,400) as an initial budget for a standard room. Blue Lagoon and peak flight dates may cost more; this is a planning range, and the actual price changes with the date, room type and cancellation terms.