We chose to do a handful of excursions. The northern lights tour was on our arrival night and was successful in that the lights put on a nice show for us. The tour guides said if you ever get a ticket and the lights aren’t visible you can get your ticket reissued for up to a year from the original tour date – pretty much until you get to see them too. They served snack and beverages (cold and hot) for purchase and had warming jumpsuits to wear so you can stand outside on the boat for extended periods of time without getting very cold instead of remaining inside the whole time. The whale watching can be hit or miss, for obvious reasons, as sightings are not guaranteed. We were lucky and saw a wide array of sea life, including whales. The geyser/snowmobiling excursion was a fun but all day adventure. The first half of the day was visiting geysers and included stopping at a local shop to get food and souvenirs and local goods. The second half of the day was riding snowmobiles (in pairs) and was a good time. Every visitor to the Blue Lagoon should be warned – prior to getting into the water everyone has to go into locker rooms (gender specific) to rinse off any products or oils that might be in your hair or on your skin. There are hair driers and vanities for getting ready and lockers for storing your items safely along with shampoo, conditioner and shower gel in each shower stall. But that is not what you need warning of. Many visitors are from European countries where public nudity is not regarded as taboo. Therefore, we were a bit shocked when everyone was walking around the locker room completely naked and getting relatively close to other people, not even phased that their *ahem* unmentionables were too close for comfort (in my opinion). You’ve been warned. The Blue Lagoon itself was nice, they offer free mud masks for you to apply while in the lagoon and there is a bar for purchasing drinks also. We stopped in the gift shop after and if we went again we would probably book a spa treatment. TIP: if you’re looking to get good photos I would recommend going in the daytime. We went towards the end of the day and the steam (which we thought would make our photos look cool and whimsically mysterious) actually made them look bad and out of focus with flashback. Lastly, but definitely a repeat excursion for our next visit: snorkeling between the tectonic plates. This was by far the best adventure – we dressed in a wet suit and a dry suit so we floated naturally without effort to allow us to stay dry and to enjoy the snorkeling more without getting wet and very cold. The only thing exposed is part of your face but honestly it goes numb after the first few minutes and you don’t feel cold at all. A photographer goes with each group and you can purchase photos afterward – which we did and have framed in our hallway. Your hair does get wet though so be prepared to rock a messy look on the ride back.