The Kuna Indians live in huts and fish from canoes carved out of tree trunks. Here is a typical view, of an island that is a part of the Chichime Cays, showing a canoe on the left and a few houses scattered around. 141
The San Blas islands are all tiny (you can usually see through the trees to the other side of the island), but there are plenty of fish, lobsters and coconuts so the Kuna do not need land for agriculture. Many of the Kuna's commute to the mainland each day to work, so additional supplies can be brought in as needed.