Osmosis is an ocean-view cafe on the Gujwa coastal road in Handong-ri, east Jeju, a short distance from Woljeong-ri, selling carrot juice, coffee, and cake. The carrot juice is squeezed to order, and the menu includes Gujwa carrot cake, Basque cheesecake, and coconut espresso. Outdoor wooden platforms and a terrace face the sea breeze, and in warm weather guests can stay and listen to the sound of the waves. The interior uses plants and props, the owner's music plays, and americano and flat white are also on the menu.