This is an exchange
Host and visitor, maybe the beginning of a new friendship.
On this website you will find information on how to get from the airport to the city centre, but remember to give them specific directions to your house.
If your guest needs to bring items such as towels, sheets, sleeping bag, etc. remember to let them know in advance, and also let them know if they will sleep in a bed, sofa or sofa bed, etc.
Also, the whole point is that your guest stays with you during the Barcelona Lindy Exchange, but if they request to staying longer you should discuss it beforehand in order to avoid misunderstandings.
Hotels and hostels.
If you opt to go to a hostel, we have found a hostel nearby
The Amistat beach hostel: https://amistathostels.com/
Much recommended by previous visitors, really close to the main party room at Poblenou, good vibes and with a good quality/price ratio in shared dorms. Check out their site for further information.
If you book with them online entering the code SWINGBCN you will have a 10% discount.