Police say they'll work with marshals to prosecute people who venture onto closed roads.
They issued the warning after a number of reports this week.
Officers say riding, driving or walking onto the course while it's closed puts yourself and others at serious risk.
They say if you defy the law, you might find yourself appearing before the next available court.
Emergency closure in place on quayside
The Department of Infrastructure says it's put an emergency closure in place on East Quay in Peel.
Passport services to move online
The government has announced applications for Isle of Man passports will be moving online in future.
Woman plans to ride 100 miles for charity
A local woman plans to cycle 100 miles to raise money for four Island charities, starting this week.
Roadworks near Foxdale this week
The Department of Infrastructure says it's carrying out roadworks on a route near Foxdale this week.
Postal vote deadline looms for those living abroad
If you live outside the British Isles and want to vote by post in this month's election, you have just hours to apply.
MP reveals more details of Whitehaven ferry proposals
An MP who wants to set up a ferry route from Cumbria to the Island has revealed more details about what's proposed.
Council wishes Bee Gee happy 80th birthday
Douglas Council's wished one of the Island's biggest stars a very happy birthday!
Warning over traffic delays as city centre work gets underway
A busy street in Douglas city centre will have temporary lights this week.
