Three days in Mumbai (formerly Bombay, officially renamed in November 1995) is enough for one properly full trip, not the whole 20-million-plus metro, and this build stays honest about that split. Day one is South Mumbai’s UNESCO-stacked core, day two is the Elephanta Caves ferry plus Dhobi Ghat and Haji Ali, and day three is Bandra with a street-food crawl and Mani Bhavan. Dharavi, Sanjay Gandhi National Park and the northern suburbs get skipped this time, that’s exactly what the longer 4-day , 5-day , 6-day and 7-day plans are built for, and the full Mumbai guide is the place to check if three days is even the right number for your trip.

Four days gets you all of first-timer Mumbai (formerly Bombay, renamed in November 1995): the South Mumbai heritage core, a full day out to the Elephanta Caves, Dhobi Ghat and Bandra, then a Day 4 push into the suburbs for Kanheri Caves, a Dharavi tour or the Vipassana Pagoda. It nests inside the longer 5-day , 6-day and 7-day versions, and trims down from the 3-day itinerary if you’ve only got a long weekend.

Five days in Mumbai is the number where you stop sprinting. The city, formerly Bombay until its official rename in November 1995, rewards the extra time: you get the full South Mumbai UNESCO core, the Elephanta ferry and Bandra that most short trips rush through, plus two extra days most three and four day visitors never reach, a proper push out to Sanjay Gandhi National Park and Dharavi, and a fifth day built entirely around food, markets and the neighborhoods everyone else skips.

Six days in Mumbai buys you the whole first-timer route, South Mumbai’s UNESCO core, the Elephanta ferry, Dhobi Ghat and Haji Ali, Bandra, a push into the northern suburbs, and a full day of street food and markets, plus one thing the shorter trips skip entirely: a real day trip out of the city. That’s the case for six days over five, not more Mumbai, but one genuine escape from it, to the car-free hill station of Matheran, the waterfalls and forts of Lonavala-Khandala, or the beaches at Alibaug and Kashid, now a shorter drive since the Atal Setu bridge opened across the harbour in January 2024.

Seven days is enough to stop treating Mumbai as a single stop and start using it as a base. The first five days cover the full first-timer core: South Mumbai’s UNESCO trio, the Elephanta Caves, Dhobi Ghat and Bandra, a push out to Sanjay Gandhi National Park and Dharavi, then a slower food-and-markets day. Days 6 and 7 spend the extra time on two real trips out of the city. This route nests the 3-day , 4-day , 5-day and 6-day itineraries inside it; any of those covers a complete trip on its own if a full week is more than you need.

Mumbai earns a first trip built around its icons, not around avoiding them. Start at the Gateway of India, walk Fort and Colaba’s Victorian Gothic and Art Deco streets, ride the ferry out to the Elephanta Caves, and eat your way through vada pav stalls and Irani cafes in between. The catch is timing and paperwork, not the sights themselves: most visitors need an Indian e-Visa before they fly, and the monsoon, roughly June through September, can shut the Elephanta ferry down for days at a stretch.

Mumbai used to be Bombay, officially renamed in November 1995, and the old name still shows up on the Bombay High Court and the Bombay Stock Exchange, so don’t let it throw you. It’s India’s largest city and its financial capital, on the Arabian Sea coast in Maharashtra, and visiting it well is mostly a logistics question: which airport you land at, how you move through a city of over 20 million people, and what paperwork you sorted before you left home.