Indian oceanic archipelagos and estuarine island reserves require adherence to strict environmental mandates. Inter-island transit is governed by the Directorate of Shipping Services (DSS) in Andaman & Nicobar and SPORTS catamaran charters in Lakshadweep. Advance online passenger booking is mandatory during peak winter sailing seasons. Single-use plastics are banned across all marine park territories.
Unprotected coral reef gaps and seaward channels exhibit hazardous rip currents exceeding 2.5 meters per second, particularly around tidal shifts. Swimming outside designated lagoon flags is prohibited. Under the Wildlife Protection Act 1972 (Schedule I), touching, extracting, or transporting any live coral, dead coral rubble, or sea shells is a non-bailable criminal offense subject to severe fines and imprisonment.
Submerged volcanic mountain arcs, pristine coral reef walls, indigenous tribal reserves, and historic penal colonies in the Bay of Bengal & Andaman Sea.
Biogenic Acropora coral atolls, turquoise lagoons, basaltic offshore sea forts, and geological monuments: Lakshadweep, Goa, Karnataka, and Maharashtra.
Braided river delta archipelagos, sacred riverine fortresses, estuarine mangrove tiger reserves, and coastal sand spits: Assam, Bengal, Odisha, Tamil Nadu, Kerala, and Gujarat.