9.1K views · 85 reactions | Campaigners against HS2 have started a week-long protest walk along the route between Birmingham and London. Their aim is to highlight the damage they say high speed rail will do to wildlife and woodland. Protestors are calling on the government to halt work along the line. | BBC Birmingham | Facebook

14K views · 142 reactions | We hear from the activists who've spent days holed up in underground tunnels in central London to protest against the HS2 rail link. One of them turns out to be Swampy. | Channel 4 News | Facebook

This is the huge 10-mile HS2 tunnel being built that will take 200mph trains just three minutes to pass through. Sonic booms can be caused by high-speed trains forcing air forwards when they enter a tunnel - but this has been designed with special measures in place to prevent it. The huge structure heads under the Chiltern Hills and took almost three years to bore through the land. It's on the route to Birmingham - and in June 2024, HS2 Ltd assessed the cost for the line to be up to £66 billion.