According to forum posts, many travelers recommend taking a boat tour for whale watching, as spotting whales from the shore in Reykjavik is rare and unreliable. Options include both large boats and more nimble RIB (Rigid Inflatable Boat) tours, which can get closer to the whales and offer a more personal viewing experience.

For those planning their trip, it’s suggested to book whale watching tours a few days in advance, especially during peak travel seasons. Travelers have called out that while whale watching can be done year-round, the experience can vary significantly with the weather, with colder months being less comfortable due to rough seas and lower temperatures.

Some travelers stated that even with a good tour, whale sightings are not guaranteed and conditions can be challenging. However, for enthusiastic wildlife watchers, the experience of being out on the water and the potential to see whales up close is often worth the trip.

Several travelers recommended Flybus as a reliable and economical choice for transporting from Keflavik Airport to Reykjavik. Flybus operates in connection with flight arrivals and takes passengers to the BSI terminal in Reykjavik, with options for further transfers to hotels.

Taxis are available but considered expensive for the journey from Keflavik Airport to Reykjavik, with costs around $150 to $200. However, some users noted recent reports where the price was somewhat lower.

Some forum posts suggested considering the Airport Express and Airport Direct for additional shuttle services. These services are noted for their efficiency and cost-effectiveness compared to taxis.

According to forum posts, travelers have highlighted the Reykjavik Residence Hotel for its prime location close to main downtown areas and quiet environment. The hotel offers large breakfast baskets that could also serve as a light lunch. Another option, the Hotel Holt, was booked by a user after finding many other hotels full, indicating its popularity and satisfactory features.

Some travelers mentioned the Grand Hotel Reykjavik, which, despite being away from the downtown area, offers shuttle services to the center and is favored for its tour bus accessibility. The Fosshotel Reykjavik is noted for being in a quieter area, suitable for those seeking a peaceful environment.

The Reykjavik Centrum is appealing for its unique location over a Viking longhouse excavation, adding a historical touch to your stay. Travelers have also appreciated the proximity of various Center Hotels like Klopp and Laugarvegur, which offer good breakfast and central locations.

Travelers have called out the importance of checking individual hotel reviews on TripAdvisor to tailor choices based on personal preferences, such as proximity to specific attractions or desired amenities like spas or breakfast options.

According to forum posts, travelers have recommended several tour operators for Northern Lights tours in Reykjavik. Holiday Tours, marketed through Wake-up Reykjavik, offers small group tours that include Northern Lights excursions, which have been well-received by travelers. Arctic Adventures and Troll Adventures also offer small group tours that many users have found satisfactory.

Some travelers mentioned that booking a tour for the first night increases the chances of seeing the Northern Lights, with some companies offering a second chance if the lights don't appear on the first outing. Tours that combine other activities, such as the Earth and Sky tour by Extreme Iceland, are favored because they provide an enjoyable experience regardless of whether the Northern Lights appear. Additionally, most tour companies provide warm clothes, but it's advisable to dress warmly and be prepared for cold weather during these tours.

According to forum posts, travelers can exchange money at various downtown locations in Reykjavik, such as FX Iceland, which is open every day. It's advised to avoid airport exchanges due to higher rates.

Some travelers suggested using ATMs for a better exchange rate. ATMs are widely available in Reykjavik and around Iceland, offering more favorable rates compared to currency exchange offices, especially those at airports.

For many users, using credit cards with no foreign transaction fees is the best option since Iceland is predominantly a cashless society. This minimizes the need for cash except in very specific instances like certain rural areas or small purchases.

It was mentioned that some banks outside the airport offer slightly better rates for currency exchange than those at the airport. Arion Bank was specifically named as having a location at the airport and other branches in the city.

Some travelers have mentioned finding car rental options in Reykjavik, including a specific mention of Enterprise Rent-A-Car. According to forum posts, Enterprise offers a pickup location at Skarfabakki cruise dock, which may be convenient for cruise passengers.

For those looking to explore different vehicle options, such as SuperJeeps or other unique vehicles, it's advised to do some research online. Travelers have successfully used Google Maps to locate nearby car rental facilities.

Travelers have discussed the convenience of car rentals at Keflavik airport, suggesting that it might be beneficial to retain a rental car for the duration of the stay in Reykjavik, especially if planning to explore beyond the city limits. This could potentially save on costs and provide more flexibility compared to other transportation options.

According to forum posts, the feasibility of leaving Keflavik Airport during a layover depends on the duration. For layovers less than five hours, it's generally advised to stay at the airport and enjoy local food and drink as Reykjavik is about 45 minutes away by car.

For those with slightly longer layovers, some travelers mentioned the possibility of visiting nearby attractions such as the Blue Lagoon, which has luggage storage available, making it convenient for layover tourists to relax without worrying about their bags.

Travelers with layovers extending beyond a few hours have successfully planned short trips into Reykjavik city or nearby natural attractions. Activities can include dining in local restaurants, exploring the cityscape, or enjoying Iceland's unique landscapes if time permits.

According to forum posts, travelers have a choice between the Blue Lagoon and Sky Lagoon when visiting Reykjavik. The Blue Lagoon is highly popular and recommended for its proximity to the airport, making it ideal for a visit upon arrival or before departure. However, it is subject to closures due to volcanic activity.

Some travelers expressed a preference for Sky Lagoon, located on the outskirts of Reykjavik. It is favored for not being overcrowded and offering a more tranquil experience compared to the Blue Lagoon. However, it lacks massage services and an on-site hotel, which some visitors might find inconvenient.

Travelers have noted that both lagoons require pre-booking due to their popularity, especially during peak times. The Blue Lagoon offers luggage storage facilities for a fee, adding convenience for those heading to or from the airport.