Hong Kong is not a cheap place, but with a bit of planning and creativity, you can spend an enjoyable day in the city on very little money. Outdoor spaces, street concerts, galleries and markets abound in this packed metropolis, many open free-of-charge. Local buses and rooftop car parks provide budget alternatives to expensive theme parks and swanky bars.So if the wallet is feeling a little slim, check out some of our favourite free things to do in Hong Kong. Museums, galleries and art spaces Free art is everywhere in Hong Kong. Seven of of the city's museums are open for free every Wednesday: the Museum of Art, Museum of History, Heritage Museum, Science Museum, Space Museum, Museum of Coastal Defence and the Dr Sun Yat-sen Museum. The Flagstaff Museum of Tea Ware, Hong Kong Railway Museum, Lei Cheng Uk Han Tomb Museum, and a handful of folk museums are free of charge on everyday, as are the exhibitions at the Hong Kong Film Archive and the Hong Kong Arts Centre. On the south side of the island, former factories in Wong Chuk Hang have transformed into beautiful gallery spaces, such as Spring Workshop (springworkshop.org), many of them free to visit.The stunning Asia Society Hong Kong Centre has excellent exhibitions throughout the year. Also worth exploring are the PMQ design hub in Sheung Wan, or Cattle Depot Artist Village, Oil Street Art Space, and the Jockey Club Creative Arts Centre in Kowloon, where the setting and architecture beguile alongside the art. The charming streets of Sheung Wan are lined with galleries specialising in Chinese antiques. Take your time admiring the artefacts and learning about them from the owners. Street concerts in Wan Chai Concerts featuring some of the best local musicians from classical through jazz to indie, are thrown by eclectic music organizer Kung Chi-shing every third Saturday of the month (5.30-8pm) outside the Arts Centre, every second Thursday (7.30-9pm) outside the Blue House, and every last Sunday (3-4.30pm) at Comix Home Base. All three venues are in Wan Chai. Expansive views Enjoy panoramic island views from the 43rd floor viewing platform in the Bank of China Building; or bring your own booze to the public terrace at the International Finance Centre and gaze at Victoria Harbour. If in Kowloon, join lovers and photography enthusiasts on the rooftop carpark of Harbour City in Tsim Sha Tsui for some serious sunsets over the harbour or West Kowloon. Peninsula walkthrough Saunter through the gilded (and air-conditioned) halls of one of Asia’s most legendary hotels – the Peninsula. Listen to the clink of silverware as fashionable patrons take afternoon tea in the opulent lobby, then climb the red-carpeted staircase to the colonnaded verandah on the second floor.