Question: Xcalak is located on the southern end of the tourist region in what municipality?
Context: The Castle of Abrantes (Portuguese: "Fortaleza de Abrantes" ) overlooks the city of Abrantes, in the municipality of Abrantes in the district of Santarém, Ribatejo, divided between the two civil parishes of São João and São Vicente.  It was part of the Reconquista fortifications that made up the "Linha do Tejo" (English: Tagus Line ), a line of castles and outposts during the Middle Ages, recently integrated into a tourist region called the "Região de Turismo dos Templários" (English: Tourist Region of the Templars ). The Village of Lake George is a village within the town of Lake George in Warren County, New York, United States, located at the southern end of its namesake lake.  The population was 985 at the 2000 census.  It is part of the Glens Falls Metropolitan Statistical Area.  The village and the surrounding area is a famous summertime tourist region and historic summer colony, which at one time included Alfred Stieglitz and Georgia O'Keeffe. Magog ( ; ] ) is a city in southeastern Quebec, Canada, about 120 km east of Montreal at the confluence of Lake Memphremagog—after which the city was named—with the Rivière aux Cerises and the Magog River.  It is a major centre and industrial city in the Regional County Municipality of Memphremagog.  The city lies in the Eastern Townships tourist region. Costa Maya is a small tourist region in the municipality of Othón P. Blanco in the state of Quintana Roo, Mexico, the only state bounded by the Caribbean Sea to its east.  This municipality is close to Chetumal (capital of the state) on the border with Belize.  The area is generally undeveloped but has been growing quickly and rapidly after construction of a large pier to accommodate cruise ships. Costa Maya also called Costamafia or Costa Mucho by locals, is a subdivision near the actual village of Mahahual.  Other notable neighbourhood to visit is the famous 55, where all the locals live.  The beach extends physically from Xcalak in the south to the southern border of Sian Ka'an in the north, a distance of approximately 100 km . Xcalak is a village of 375 inhabitants in the municipality of Othón P. Blanco, Quintana Roo, on the Caribbean coast of Mexico.  Xcalak is one of the last "unspoiled" stretches of Mexican Caribbean located on the southern end of the Costa Maya.  The world's second largest barrier reef passes just off-shore from Xcalak and it is also a departure point for dive trips to the Chinchorro Banks ("Banco Chinchorro") atoll reef system.  It is designated a Mexican national reef park ("Parque Nacional Arrecifes de Xcalak") and is an excellent site for snorkeling, scuba diving and fly fishing.  It is 60 km south of Mahahual, the site of a new large cruise ship pier, and just north of the border with Belize.  The Mahahual pier was destroyed by hurricane Dean in 2007.  This section of coast is now being developed by the tourism industry and has a growing number of Americans and other expatriates investing in beach front property north of town.  However, development is nowhere close to the degree of development of its Northern cities Cancún and Playa del Carmen. Sharbot Lake is a Suburban Community and unincorporated area in the municipality of Central Frontenac, Frontenac County in Eastern Ontario, Canada.  It is part of the Land O'Lakes Tourist Region and is located on the eponymous Sharbot Lake. Epfenbach is a municipality in south western Germany.  It is located between Heidelberg and Sinsheim in the Rhein-Neckar district in the state of Baden-Württemberg.  The municipality belongs to the municipal association of Waibstadt and the tourist region Brunnenregion ("Water Spring Region"). Nymindegab lies in Southwest Jutland, Denmark, and is a former fishing village by the former outflow at the southern end of Ringkøbing Fjord.  In the summer, it is a well-attended tourist town with a permanent population of 240 (1 January 2014).  It is located in Varde Municipality and belongs to Region of Southern Denmark.  The town is situated at the southern end of the isthmus of Holmsland Dunes, which demarcates the fjord from the North Sea.  Just northeast of Nymindegab lies the bird reservation of Tipperne on a peninsula in Ringkøbing Fjord. Reinhardtsdorf-Schöna is a municipality in the Sächsische Schweiz-Osterzgebirge district in the German federal state of Saxony.  It has a population of approximately 1,600 and is located close to the Czech border in Saxon Switzerland, a popular tourist region. Bávaro is a tourist area in Punta Cana, located in La Altagracia province, the easternmost province of the Dominican Republic.  Bavaro was developed together with the resort area and tourist region of Punta Cana, as a town for resort workers.  As hotels started to rise along the east coast, north from Punta Cana, Bavaro itself became a center of services.
Answer: Othón P. Blanco