****** Here in this station tip I have narrated three important tourist spots of Mumbai*******
They are
A Elephanta Island
B Elephanta Cave
C Gateway Of India
Now...
more...

I am narrating one by one below:
A Elephanta Island
Elephanta Island (also called Gharapuri Island or place of caves or Pory Island) is one of a number of islands in Mumbai Harbour, east of Mumbai, India.
Tourist attractions and accessibility:
This island is a popular tourist destination because of the island's cave temples, the Elephanta Caves, that have been carved out of rock.
The island is easily accessible by ferry from Mumbai, being about 10 kilometres (6.2 mi) from the south east coast of the island city. Boats leave daily from the Gateway of India, taking about an hour each way. The tickets for these can be bought at the Gateway itself. The first ferry leaves at 9 am, the last at 2 pm. From the boat landing stage on the island, a walkway leads to steps that go up to the famous caves.
There is also a narrow-gauge toy train from the boat area on the dock to the base of the steps leading up to the caves (about 600 meters). Along the path, hawkers sell souvenirs like necklaces, anklets, showpieces and keychains. There are also stalls to buy food and drinks. Small monkeys play along the sides of the path, occasionally thieving items from the hawkers, trashcans and tourists.
History:
Known in ancient times as Gharapuri, the name Elephanta island (i.e. "ilha do Elefante"), was given by 16th century Portuguese explorers, after seeing a monolithic basalt sculpture of an elephant found near the entrance. They decided to take it home but ended up dropping it into the sea because their chains were not strong enough. Later, this sculpture was moved to the Victoria and Albert Museum (now Dr. Bhau Daji Lad Museum) in Mumbai, by the British.[2] This island was once the capital of a powerful local kingdom. In Manuscript F by Leonardo da Vinci (kept at the Library de France) there is a note in which he says 'Map of Elephanta in India which Antonello the heberdasher has.' We don't know who this florentine travelle Antonello might have been.
Orientation:
The island has an area of 16 km2 (6.2 sq mi). It is located at approximately 18.95°N 72.93°E. The area comes under the jurisdiction of the Raigad district in Maharashtra State.
Inhabitants
It has a population of about 1,200. The inhabitants are mainly involved in growing rice, fishing, and repairing boats. There are two British-era cannons at the top. Quite recently, a small dam has been built so as to hold rainwater but that part of the island is privately owned and not accessible for tourists.
There are a total of three villages: Shentbandar, Morabandar, and Rajbandar, of which Rajbandar is the capital. Caves and stalls can be seen in Shentbandar. Morabandar has a thick forest. Staying overnight is not permitted for tourists. The first return ferry leaves at 12:30pm and the last at 5:30pm.
Source of this info: click here
Attached Images:
1 View of Elephanta island jetty, from Elephanta Caves.
URL: click here
2 Boats of fishermen living on the island.
URL: click here
B Elephanta Caves:
The Elephanta Caves (Marathi: घारापुरीची लेणी, Gharapurichya Lenee) are a network of sculpted caves located on Elephanta Island, or Gharapuri (literally "the city of caves") in Mumbai Harbour, 10 kilometres (6.2 mi) to the east of the city of Mumbai in the Indian state of Maharashtra. The island, located on an arm of the Arabian Sea, consists of two groups of caves—the first is a large group of five Hindu caves, the second, a smaller group of two Buddhist caves. The Hindu caves contain rock cut stone sculptures, representing the Shaiva Hindu sect, dedicated to the god Shiva.
The rock cut architecture of the caves has been dated to between the 5th and 8th centuries, although the identity of the original builders is still a subject of debate. The caves are hewn from solid basalt rock. All the caves were also originally painted in the past, but now only traces remain.
The main cave (Cave 1, or the Great Cave) was a Hindu place of worship until Portuguese rule began in 1534, after which the caves suffered severe damage. This cave was renovated in the 1970s after years of neglect, and was designated a UNESCO World Heritage Site in 1987 to preserve the artwork. It is currently maintained by the Archaeological Survey of India (ASI).
For more details please refer: click here
Attached Image:
3 20 feet (6.1 m) high Trimurti sculpture
Source:click here
4 Left Shiva and Parvati on Mount Kailasha Right Ravana shaking Mount Kailash
Source: click here
C Gateway of India:
The Gateway of India is a monument built during the British Raj in Mumbai (formerly Bombay), India. It is located on the waterfront in the Apollo Bunder area in South Mumbai and overlooks the Arabian Sea. The structure is a basalt arch, 26 metres (85 feet) high. It lies at the end of Chhatrapati Shivaji Marg at the water's edge in Mumbai Harbour. It was a crude jetty used by the fishing community which was later renovated and used as a landing place for British governors and other prominent people. In earlier times, it would have been the first structure that visitors arriving by boat in Mumbai would have seen. The Gateway has also been referred to as the Taj Mahal of Mumbai, and is the city's top tourist attraction.
For more details: click here
Attached Image:
5 The Gateway of India as seen from the harbour
Source: click here