Physical Features of Malta, Madagascar, and Sri Lanka: Island Geography Compared

Three island nations, three distinct geological stories. Here's a comparative snapshot.

Malta (Mediterranean)

• Location: 93 km south of Sicily, 288 km north of Libya.
• Area: 316 km² (10th smallest sovereign state).
• Geology: Limestone plateau (Globigerina, Coralline) – no mountains, gentle hills.
• Highest: Ta' Dmejrek (253 m / 830 ft).
• Coastline: 197 km – indented, harbors (Grand Harbour, Marsamxett), cliffs (Dingli), blue lagoons (Comino).
• Water: **No permanent rivers/lakes.** Relies on desalination, aquifers.
• Climate: Mediterranean – hot dry summer, mild wet winter.

Madagascar (Indian Ocean)

• Location: 400 km off Mozambique, SE Africa.
• Area: 587,041 km² (4th largest island).
• Geology: Ancient Gondwanan crust; central **high plateau** (800–1,500 m), rift valleys, volcanic massifs.
• Highest: Maromokotro (2,876 m / 9,436 ft) – Tsaratanana Massif.
• Coastline: 4,828 km – diverse: mangroves (west), rainforest cliffs (east), coral reefs (southwest).
• Rivers: Major: Betsiboka, Tsiribihina, Mangoky, Onilahy – flow west to Mozambique Channel.
• Biomes: Eastern rainforest, western dry deciduous forest, southern spiny thicket, highland grassland.

Sri Lanka (Indian Ocean)

• Location: 30 km SE of India (Palk Strait).
• Area: 65,610 km².
• Geology: Precambrian metamorphic basement; **central highlands** (tea country) surrounded by coastal plain.
• Highest: Pidurutalagala (2,524 m / 8,281 ft).
• Coastline: 1,340 km – beaches, lagoons, estuaries, coral reefs (northwest/south).
• Rivers: 103 rivers – Mahaweli (335 km) longest; feed ancient irrigation tanks.
• Lakes: Mostly man-made reservoirs (Kala Wewa, Parakrama Samudra).
• Climate: Tropical – two monsoons (Yala SW, Maha NE); distinct wet/dry zones.

Quick Comparison