Comino has very few facilities and little shade or shelter. It's hot, dry and dusty, so if you plan to explore take plenty to drink and wear good sun protection. For swimming in the Blue Lagoon be sure to take your swimwear too.
Are swim suits required at the Blue Lagoon? Bathing suits are worn in and around all areas of the bathing lagoon, including the sauna. You can bring your own, or rent them from reception. You can also rent towels and bathrobes.
If you book the Premium or Luxury packages, then your entrance also includes a bathrobe. If you have your own towel (or bathrobe), you are welcome to bring it to the Blue Lagoon to use. However, we recommend just using the free towel provided as otherwise you will have wet towels to take home with you.
We would recommend that you do not pack a pillow for the Camino de Santiago. We don't think you will need a pillow, unless you're planning to wild camp of course. All albergues and guest houses will have pillows.
5. Stick To A Schedule. We recommend starting your Camino training at least three months in advance, with the aim of walking three 1 hour sessions a week. A month before your trip, even earlier if you can, put a day walk in each weekend into the mix to build the endurance you'll need for your walk.
Most albergues do not supply sheets and towels, so plan to bring a lightweight one-season sleeping bag and pack towel. If you really want to save weight, consider carrying just a sleeping bag liner if you are walking in summer.
The best approach, especially at the beginning, is to get out and start walking (or cycling if you plan to cycle the Camino). If you are walking the Camino, you're going to want to build up to being able to walk 20km a day comfortably.
Buy two pairs of shoesI found it a lot more comfortable to be able to put on a dry pair of shoes every morning. That was worth the weight of an extra pair to me.
There are instructions on the locker door as well. It is recommended that you leave all your jewelry and watches in the locker and the water might cause some damage to them. After having fun with the locker, you will need to shower before going into the lagoon. It is compulsory to shower and wash with soap.