Limón Province in the context of Río Sixaola

Bocas del Toro (Spanish pronunciation: [ˈbokas ðel ˈtoɾo]; meaning "Mouths of the Bull") is a province of Panama. Its area is 4,643.9 square kilometers, comprising the mainland and nine main islands. The province consists of the Bocas del Toro Archipelago, Bahía Almirante (Almirante Bay), Chiriquí Lagoon, and adjacent mainland. The capital is the city of Bocas del Toro (or Bocas Town) on Isla Colón (Colón Island). Other major cities or towns include Almirante and Changuinola. The province has a population of 159,228 as of 2023.

Christopher Columbus and his crew first visited the area in 1502. Bocas del Toro borders the Caribbean Sea to the north, Limón Province of Costa Rica and the Naso Tjër Di Comarca to the west, Chiriquí Province to the south, and Ngöbe-Buglé Comarca to the east. The Río Sixaola forms part of the border with Costa Rica. A newly constructed bridge spans the river between Guabito and Sixaola, Costa Rica. The bridge is a border crossing used by tourists going between destinations in Bocas del Toro and Costa Rica.

Puntarenas (Spanish pronunciation: [puntaˈɾenas]) is a province of Costa Rica. It is located in the western part of the country, covering most of Costa Rica's Pacific Ocean coast, and it is the largest province in Costa Rica. Clockwise from the northwest, it borders on the provinces Guanacaste, Alajuela, San José and Limón, and the neighbouring country of Panama.

San José (Spanish pronunciation: [saŋ xoˈse]) is a province of Costa Rica. It is located in the central part of the country, and borders (clockwise beginning in the north) the provinces of Alajuela, Heredia, Limón, Cartago and Puntarenas. The provincial and national capital is San José. The province covers an area of 4,965.9 km². and has a population of 1,404,242.

The Sixaola River (Spanish: Río Sixaola) is a river in southern Limón Province, Costa Rica. It flows from the Cordillera Talamanca to the Caribbean Sea northeast of Sixaola at 9°34′20″N 82°33′54″W / 9.57222°N 82.56500°W / 9.57222; -82.56500. The river's headwaters are part of the La Amistad International Park. For part of its length, the river forms the border between Limón Province, Costa Rica and Bocas del Toro Province, Panama.

An old railroad bridge that collapsed in 2017 spanned the river between Guabito, Panama, and Sixaola, Costa Rica. This bridge was a border crossing between Costa Rica and Panama and used by pedestrians when traveling between Costa Rica and Bocas del Toro. This bridge has now been dismantled.

Sixaola is a district of the Talamanca canton, in the Limón province of Costa Rica. It is a border town together with Guabito, Panama Sixaola is right across the Sixaola River from Guabito, Panama.

Heredia (Spanish pronunciation: [eˈɾeðja]) is a province of Costa Rica. It is in the north-central part of the country. As a result, the province covers areas as diverse as the agriculture-rich Northern plains to the more metropolitan areas such as the city of Heredia in the Central Valley. It contains several major environmentally important areas such as the Braulio Carrillo National Park and the Sarapiqui River. The capital is the city of Heredia.

To the north it borders Nicaragua, to the east is the province Limón, to the south the province San José, and to the west Alajuela.