Services operate at regular intervals between April and September.
It's the only place in the British Isles where you can see seven kingdoms - England, Ireland, Scotland, Wales, Heaven, Mann and the Sea - just by turning around.
The weather on Snaefell is as famous as the railway itself, while the weather may be sunny and clear down in Douglas, it may be a completely different story at the top of the mountain.
It was interesting to see that breakups spiked during certain points in the year.
Here's my analysis of the are the results: It's ironic that there would be arash of breakups on the most romantic day of the year.
You can be standing with your head in the sunshine and your legs in fog!