For a family of two adults and two children aged 5 and 10, what is the total cost for general admission tickets to the National Marine Aquarium? Additionally, identify any special offers or passes that would provide extended access beyond a single visit.
Navigate to 'national-aquarium.co.uk'. Click on the 'Visit' link. Click on the 'Book Tickets & Prices' link. Click on the 'Book Entrance Tickets' link. Identify the individual ticket prices for adults and children (3-15 years old). Calculate the total cost for two adults and two children (aged 5 and 10). Identify and state the details of any offer providing extended access or an annual pass.
State the total calculated cost for two adults and two children (aged 5 and 10) is £84.00. Clearly state that all admission tickets include a free unlimited annual pass, allowing 12 months of free entry after the initial visit.