Katchatheevu (Kachchativu) is a small 163-acre (0.66 square kilometers), barren, uninhabited island located in the Palk Strait between India and Sri Lanka. It lies right in the center of Rameswaram in India and Delft Island of Sri Lanka with about 20km on both sides.
The Dutch Reformed Church, with gables on the eastern and western walls, but no tower, was completed in 1755. It is similar in style to the ones in Negapatnam and Cochin in India, even including the walls. It is built on the site of an earlier Portuguese convent. Around the church and within the walls is a small graveyard.