The topography of Diglipur is striking and varied. The terrain ranges from flat coastal plains and tidal mudflats to rolling hills and steep, forested ridges.
The region is dominated by Saddle Peak, which, at 732 meters (2,402 feet) above sea level, is the highest point in the Andaman and Nicobar Islands. The mountain is surrounded by the Saddle Peak National Park, featuring steep inclines and dense canopy cover. Near the village of Shyam Nagar, the topography features rare active mud volcanoes, formed by the emission of depressurized pore water and natural gases from decaying organic matter underground. The coastline is equally diverse, featuring both rocky outcrops and wide, sandy floodplains where rivers meet the Andaman Sea.