Arnala is one of the best forts from coastal forts. it is located in Arnala village, of Vasai taluka. Arnala Fort is also known as ‘Jaldurg’ or ‘Janjire Arnala’. The Arnala was captured by many empires such as Mughals, Marathas, Portuguese, and lastly Peshwas. The sultan Mahmud Begda originally constructed the fort in 1516. There is no source of food but water is available in the well on the fort.

This fort is rectangular in shape and almost surrounded by water. There are many temples such as Tryambakeshwar, Bhavani Mata, Kalika Mata, and also of Mahadev. There are three entrances out of which one entrance has big bastions on both sides which are at north side of fort.

Vasai, also called Bassein, lies about 45 kms of Palghar City. it is located in Vasai taluka. The fort in the old city was headquarter of the Portuguese in the north, next in importance to Goa. The coastal land-fort of Vasai was surrounded by sea on three sides and to the landslide it had a moat which was filled by sea-water. its 4.5 kms long strong stone wall had 11 bastions. The fort had two gates- the westward land-gate. There was also a small citadel in the fort well-equipped with water-tanks, store-houses, armory, etc., the fort also had fields for growing grains and vegetables. All the old structures inside the wall are now in ruins.

Vasai was the main naval base and sort of ship-building centre of the Portuguese. it was here in 1802 AD, the Peshwa Bajirav signed the infamous ‘Treaty of Bassein’ which virtually dissolved the Maratha Confederacy. Finally, the fort and the city of Vasai were ceded to the British in 1817 AD.

Kaldurga fort is hill type fort and is located in Palghar taluka, of Palghar District. The height of this fort is about 1550 feet. The fort range is Palghar range contains many hill forts and Kaldurg is one of them.

The top of the fort is rectangular. Due to this rectangular shape of fort one can easily locate it from a distance. There is no sign which states that this is a fort. There are large numbers of forest trees on thefort so healthy population of tribes is on the fort. But standard of living is poor. The fort is divided due to this rectangular rock as fort above the rock and fort below the rock. There are two to three steps which separate these two parts.

Kelva Fort, a historically important fort constructed by Portuguese during 16th century, is located at the southern end of the beautiful and serene Kelva Lake. The fort is situated in Palghar taluka. The fort was used by Chhatrapati Shivaji Maharaja during his Maratha rule. The fort offer exquisite panoramic views of the natural surroundings covered by greenish Suru trees. The fort, surrounded all the sides by the water, provide enchanting eye catching experience during the tidal procession and recessions. During low tide periods this is accessible and visible perfectly and local country boat facility is available to approach the fort.