The Blue House Hostel is a hotel aimed at kitesurfers. I have no interest in the sport, but I really enjoyed the atmosphere. There's good music by day, and it's calm at night. There's no hot water, but the truth is that it's quite normal and you won't miss it in the heat of Cartagena. A very pleasant place to stay in the heart of the walled city, with charming staff and good prices. Highly recommended.
We stayed at this hostel a few days ago with two friends. The first day we arrived they stole all of our money from inside our locker in the room. The place is unsafe, the area of the city where it's located is the worst part and is terribly cared for. The hostel manager didn't want to take responsibility for what happened until we went to the police to report it. I don't recommend it to anyone.
What I liked most was the service from the staff. They are very friendly and honest. I stayed a couple of days, and I can't argue with a good price ... the rooms are small, but cozy, close to all the fun of the city (bars, clubs, restaurants, etc). I recommend it!
Perhaps the cheapest and best accommodation in Cartagena, a very expensive and touristic city . Its owner is an Austrian who traveled to Colombia in the 90s and decided to stay. The bedroom accommodation with air conditioning starts at € 5 a night and you have wi-fi and complimentary coffee, a book exchange, and a guest kitchen.
I spent my last night here in Cartagena and I must confess that I regretted not staying in this hostel during the first days. The site is extremely cheap, much more than the popular Casa Viena. The Real works in a large colonial house 1 block from the hostels, in a quiet street of Gethsemane. It is run by a friendly family of Colombians (grandmother of one hundred years and talking parrot included), hence its guests are not usually foreigners, but local. Its very clean and safe, the hostel has wi-fi, internet, free coffee, dormitories and a series of rooms with private bathrooms, some with air conditioning. My room, with ceiling fan, large bed with white sheets and bathroom, I paid only $ 22,000, something like 8 €. Unbelievable.