<P> The complex is topped by a 340 - metre - long (1,120 ft) SkyPark with a capacity of 3,900 people and a 150 m (490 ft) infinity swimming pool, set on top of the world's largest public cantilevered platform, which overhangs the north tower by 67 m (220 ft). The 20 - hectare resort was designed by Moshe Safdie architects . The architect was Aedas, and they were responsible for employing all consultants and for developing, co-ordinating and implementing the design . Engineering was provided by Arup and Parsons Brinkerhoff (MEP). The main contractor was Ssangyong Engineering and Construction . </P> <P> Originally set to open in 2009, Las Vegas Sands faced delays caused by escalating costs of material and labour shortages from the outset . The global financial crisis also pressured the company to delay its projects elsewhere to complete the integrated resort . Although Marina Bay Sands has been compared in scale and development costs to MGM's CityCenter, the latter is a mixed - use development, with condominium properties (comprising three of the seven main structures) being sold off . </P> <P> The resort and SkyPark were officially opened on 23 and 24 June 2010 as part of a two - day celebration, following the casino's opening on 27 April that year . The SkyPark opened the following day . The theatres were completed in time for the first performance of Riverdance on 30 November . The indoor skating rink, which uses artificial ice, opened to a performance by Michelle Kwan on 18 December . The ArtScience Museum opened to the public and the debut of a 13 - minute light, laser and water show called Wonder Full on 19 February 2011 marked the full completion of the integrated resort . </P> <P> The grand opening of Marina Bay Sands was held on 17 February 2011 . It also marked the opening of the seven celebrity chef restaurants . The musical The Lion King debuted on 3 March 2011 . The last portion of the Marina Bay Sands, the floating pavilions, were finally opened to the public when the two tenants, Louis Vuitton and Pangaea Club, opened on 18 and 22 September 2011, respectively . </P>

When was the marina bay sands hotel built