Eco-style 3BR beachfront home on the Osa Peninsula, Costa Rica, blending jungle and ocean views with wildlife encounters, plunge pool, and sustainable living in pristine Backwash Bay.
Welcome to Casa Arenosa
Casa Arenosa is a tropical, eco-style beach house located in Matapalo on the Osa Peninsula. This open-air home blends beach and jungle living and sits directly on Backwash Beach. Surrounded by the pristine rainforest of the Osa, the property features a cold-plunge pool and offers a unique opportunity to observe wildlife such as four species of endangered monkeys, scarlet macaws, and blue morph butterflies.
Whether you want to relax, swim, hike, or explore nearby waterfalls, Casa Arenosa is an ideal retreat for nature-loving couples and families. Pura Vida!
The Space
Experience stylish eco-jungle living at this private oceanfront home, set on an acre and a half of lush gardens along the secluded Backwash Bay beach. The Osa Peninsula is renowned for its biodiversity and untouched natural beauty, with no large hotels or nightlife, offering a raw and vibrant environment.
Wake up to howler monkeys, swim in the ocean, stroll along the quiet beach while watching scarlet macaws overhead, then cool off in the plunge pool. Relax in a hammock and enjoy watching endangered monkeys play in the bamboo gardens nearby. At night, sleep comfortably under a mosquito net canopy while listening to the waves.
Casa Arenosa is a fully functioning off-grid home powered entirely by solar energy. It uses a rainwater catchment system and fresh spring water, allowing guests to enjoy jungle luxury while living sustainably.
Accommodation Details
The two-story, open-air house includes:
- Three bedrooms
- Two bathrooms with indoor/outdoor showers
- Separate kitchen palapa
- Dining room palapa
- Open thatch-roof breezeway connecting the spaces
- Plunge pool
- Multiple decks and lounging areas
Sleeping arrangements are flexible:
- Upstairs bedroom with a king-size bed and two extra twin beds available upon request
- Downstairs bedroom with a king bed convertible into two twin beds
- Another downstairs bedroom with a double bed
Caretaker and Services
The property is cared for by Jafet, a Costa Rican certified jungle tour guide fluent in English. He lives in a private home at the back of the property and can assist with arranging tours and other services.
Guest Access
Guests have full access to the main house, gardens, and beach. A separate laundry area is available, and housekeeping can be arranged for laundry services at a small additional fee.
Please respect the privacy of the caretaker’s residence located at the rear of the property.
Pricing
To keep the home affordable for couples and honeymooners, Casa Arenosa uses a variable pricing model:
- Base rate covers double occupancy
- Additional guests are charged $75 per person per night (this applies to children as well)
Additional Resources
Guests can receive a free "Planning Your Trip Guide" by signing up for the newsletter at www.casaarenosa.com.
Reviews
4.8
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5.0
4.8
4.7
Recent Reviews
5
Suzanne
4 months ago
I’ve enjoyed many trips at Sandy’s Airbnb and it’s amazing.
5
Michel
4 months ago
The place is absolutely beautiful. Even more so than the pictures. There have been some changes since the pictures were published. Very private location with an almost private beach. Very responsive groundskeeper, Chicky, full of knowledge and super helpful. We had housekeeping once during our stay which was very nice. Super clean and comfortable. You definitely need to rent a 4 x 4 SUV as the roads are very uneven and unmaintained. Better directions with more landmarks would be helpful since the original directions are a little bit outdated. Casa Arenosa does show up on maps but no directions found from Puerto Jimenez because the Malopalo unmaintained road is not marked. The whole house is open air, so make sure you are comfortable with no A/C. It was cooler with the fans provided inside the bed. You are in the jungle so expect a giant wolf spider crawling around, raccoons opening your refrigerator if not taped shut. Plunge pool was refreshing with fresh water, no chlorine.
5
Linnea
4 months ago
It was a bit magical. We were actually in the rain forest. I know there were people nearby but with all the foliage it didn’t seem like it. Getting there was quite an adventure!! The roads are a bit hard to navigate but I would do it again in a heartbeat. I loved it being almost all outdoors. The plunge pool was soooo welcome. We used it a lot. The kitchen which is not enclosed was very comfortable with a great refrigerator which we bungee corded at night to keep the raccoons out. I absolutely loved being able to see all the animal life right in our backyard. They included Spider Monkeys, Black Howlers, Agouti, Tayra, Coati, Iguana, McCaw, Parrots, Toucan and vultures, etc. we live in very dry Southern California so we left there with a heavy heart except for the interest in being dry again. Chiki was really helpful with everything!!! Last but not least, the beach ,which was gorgeous, was (I counted them) 60 steps away on a cute little private path. Unbelievable place!!!!!
Host replied
5
Beth
5 months ago
Wonderful as always.
5
Christine
5 months ago
Casa Arenosa was absolutely magical. The wildlife was incredible. We loved falling asleep to the sound of the ocean. Waking up to the Macaws was amazing . The monkeys came through in the morning to eat the fruit right outside the house . We loved everything about this place and will definitely be back .
5
Linda
6 months ago
I hate to rave about this place because it may be harder to book on our next stay. But the truth is, this place needs to be raved about. Private, but right on the ocean surrounded by jungle. All the wild life your heart desires, and then some. Cheky is the care giver who lives right next door. He is a delight and very helpful with any issues that come up. We had such a wonderful time filling the day with early morning swims in the ocean, late morning hikes through the jungle and afternoon cool downs in the soaking pool. We would love to come back with the family though we would hesitate to bring kids under the age of seven. All in all it was a piece of magical heaven and Sandy’s attention to detail had a great deal to do with that.
5
Anthony
8 months ago
Wowowow!!! This place is incredible! We seen monkeys daily. Several types! The beach access is simple and the beach is beautiful! The perfect jungle house with open air. Ask for Jako!!!! Jako helped us book private chef, massage( in home) snorkel, dolphin watch, turtle release, Corcavado National park. He knows everyone who provides guest services. We travel a lot and always use Airbnb. This is our favorite place! The home is perfect and the kind and welcoming people are even better!!! Good luck finding dates because this place has been discovered! Should you be so lucky to book, you won’t be disappointed!
5
Stephanie
1 year ago
We had a great stay at Casa Arenosa. Sandy and Cheke were extremely helpful. We surfed and hiked and relaxed in the peaceful jungle setting. Thanks for a great stay!
5
Heather
1 year ago
Perfect place right on Backwash bay. Great place to be for surfing and exploring. Kitchen had all the necessities to cook anything you wanted to. Downstairs shower was bright, open and felt just like showering in the jungle. Nice hot water on the lower level as well. Property was very clean and maintained which is important while staying in the jungle. Thanks Sandy!
3
Ariane
1 year ago
The location of the house just next the Backwash Beach is unbeatable. Chiky, the caretaker. and Pamela, the cleaning lady, are super helpful and nice. The setting of the kitchen with the bar is top. Also the communication with the owner, Sandy, was very friendly. As we know Matapalo pretty well and have stayed in other locations nearby we know certain standards. For what you pay the whole property needs to be renovated. The shower heads don't function properly, the towels are worn out, the bedsheets are out of syndicate material, the shutters falling apart. etc.
Host replied
Location
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Location shown is approximate (within 1km radius)
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