Ukupseni or Uggubseni, also called Playón Chico, is one of the most populous islands in the Guna Yala territory of Panama, 100 metres (330 ft) from the mainland.
Building materials are tree trunks for the main pillars, bamboo poles for support, and various types of leaves for the roof.
Playón Chico Airport (IATA: PYC) is located on the mainland adjacent to the island.
Extremely large cayucos, some more than 4 ft wide are used, and others vary in size down to one-person boats.
Even though cayukos travel in the ocean, they do not have a lateral brace and balance as found on Polynesian ocean-going craft.
Ukupseni, along with the vast majority of the rest of the San Blas Islands lies atop a coral reef that has broken the surface of the ocean.
The closest populated island is San Ignacio de Tupile, a few miles due east.