info [at]

Linnéa Sjögren
linnea [at]
Tel. Linnéa: 070-914 72 99
Jonas Pettersson
jonas [at]
Tel. Jonas: 073-031 03 02
Bankgiro: 5052-8561
Organisationsnr: 559031-6088

Photo by Dan Isaac Wallin

Linnéa Sjögren and Jonas Pettersson started the company Catxalot 2014. It began with a strong desire to do something else. We both had a great interest in the sea and food, and started kayaking right after we met. A year later (June 2013), we had registered a company and prepared ourselves by studying marine biology and read everything there was about seaweed. In January 2014 we started!
Photo: Stefan Edetoft.

Opening hours Thursdays 15-18 & Fridays 13-18.
Follow @tangbutiken on Instagram for opening hours. 


WGS84: N 58° 45.2373', E 11° 10.6677'
Decimal: 58.754, 11.1778

Drive to Havstenssund. Follow the signs to "Silverpilen". There is a parking on the wharf. Walk a few meters on the bridge to the south (left if you stand with his face to the sea). The Seaweed shop is located in the large so-called Southern magazine in the southern port of Havstenssund. Blue shutters and blue door.

Driving: about 2 h from Göteborg
Bus or train to Tanum/Tanumshede. From Tanum bus to Havstenssund.

Nearest airport: Göteborg or Oslo.

Write to us


Catxalot AB
Gata 23
457 95 Grebbestad

Tel. +46 (0)70-914 7299

Visiting address

Tångmagasinet (Södra Magasinet)
Sjövägen 60 (Södra hamnen)
457 75 Havstenssund