Buxton Tunnel, Limuru
Located 2km from Limuru town, Buxton Tunnel is the second-longest train tunnel in Kenya. Built around the 1940s, the tunnel is estimated to be 1.7km but very few can actually go beyond 50metres into the tunnel. It's a bit dark and spooky but still maintains some old school charm. You can, however, locate the tiny light at the end of the tunnel.