Based on the information provided, here are 5 unique specialties of the village of Panama, Sri Lanka:

• The Final Settlement: Panama is the last populated village in the southernmost part of the Eastern Province. It marks the end of the populated area before the Kumana Bird Sanctuary begins.
• Historically Significant Village: This ancient village appears on historical maps. It was the capital of the colonial Panamapattuwa.
• Distinct Cultural Heritage: Panama is a village with a mixed population of Sinhalese and Tamils. It is also known for its unique Pattini Cult.
• Amusing Postal Mix-Up: The village’s name often causes confusion for Sri Lanka Post. Local mail has been wrongly sent to the country of Panama, and vice versa.
• Gateway to a Sanctuary: The village serves as a gateway to a major wildlife area. The Kumana Bird Sanctuary and Heritage Park starts just south of Panama.