Question: How many people per year participate in a guided tour of the Sydney Opera House?
About the article "Sydney Opera House", section "Abstract".

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The Sydney Opera House is a multi-venue performing arts centre in Sydney, New South Wales, Australia.
Situated on Bennelong Point in Sydney Harbour, close to the Sydney Harbour Bridge, the facility is adjacent to the Sydney central business district and the Royal Botanic Gardens, between Sydney and Farm Coves.
Designed by Danish architect Jørn Utzon, the facility formally opened on 20 October 1973 after a gestation beginning with Utzon's 1957 selection as winner of an international design competition.
The NSW Government, led by Premier Joseph Cahill, authorised work to begin in 1958, with Utzon directing construction.
The government's decision to build Utzon's design is often overshadowed by circumstances that followed, including cost and scheduling overruns as well as the architect's ultimate resignation.
Though its name suggests a single venue, the project comprises multiple performance venues which together are among the busiest performing arts centres in the world — hosting over 1,500 performances each year attended by some 1.2 million people.
The venues produce and present a wide range of in-house productions and accommodate numerous performing arts companies, including four key resident companies: Opera Australia, The Australian Ballet, the Sydney Theatre Company and the Sydney Symphony Orchestra.
As one of the most popular visitor attractions in Australia, more than seven million people visit the site each year, with 300,000 people participating annually in a guided tour of the facility.
Identified as one of the 20th century's most distinctive buildings and one of the most famous performing arts centres in the world, the facility is managed by the Sydney Opera House Trust, under the auspices of the New South Wales Ministry of the Arts.
The Sydney Opera House became a UNESCO World Heritage Site on 28 June 2007.
The "Hudson Opera House" holds events of all nature.
From live performances of theater and music to readings and lectures, workshops, and youth activities the Hudson Opera House is a place for everyone to find an event or activity to participate in.
During the winter the Hudson Opera House produces the town of Hudson’s biggest tourism event, the Winter Walk.
During this even people will travel to Hudson to walk through the business section (where the opera house is located in) and observe music and dance performances while visiting the many new local shops that have developed since the restoration of the Hudson Opera House.
During the year people can come to participate in workshops that include how to draw, paint, and dance.
The Hudson Opera House is also a great place for families to utilize for activities that educate about different aspects of our culture.
From Shakespearian productions done for kids to hip hop dancing, the Hudson Opera House has devoted many sources to creating a family friendly environment.
Also people who do not have kids or wish to educate themselves on different cultural experiences can attend the many readings and lectures that are held.
The Hudson Opera House is opened all year long to give a constant source of art and education to the Hudson Valley. 
Olivia's Live Hits is a live album released in 2008, based on the tour of Olivia Newton-John in Sydney Opera House in 2006.
A DVD called "Live at the Sydney Opera House" was also recorded. 
In retirement in Sydney, Beaton was for many years a frequent guest of Opera Australia for performances at the Sydney Opera House.
She died in Sydney on 1 April 2010, aged 83. 
Sydney Seaplanes is a small airline operating from Sydney Harbour's Rose Bay.
Rose Bay is one of the world's oldest flying boat bases and when flights began from Rose Bay to Southampton, England in 1938 became Australia's first international airport.
Sydney Seaplanes operates 3 de Havilland Beaver float planes and 1 Cessna Caravan C208 Amphibian.
In 2007 and 2009 Sydney Seaplanes won Best Tour and Transport Operator at the New South Wales Tourism Awards and the same year won The Australian Newspaper Best Innovative Tourism Experience.
In 2009, Sydney Seaplanes went on to win the National Tourism Awards in the Tour and/or Transport Operator Category, regarded as the most coveted tourism awards in Australia.
In June 2008 Sydney Seaplanes began scheduled services between Rose Bay and Newcastle Harbour, currently operating 4 flights per day, Australia's only scheduled seaplane service.
Sydney Seaplanes aircraft have a distinctive livery of red tails with the Southern Cross Stars and a stylised Opera House symbol on the fuselage.