Trains run to Axminster roughly every hour, and it's a ten minute taxi drive up from the station - I might also be able to come and get you.

Buses go along the A35 regularly too, from Exeter to Poole and back... I can come and pick you up from the bus stop.

If driving or cycling, the gated entrance to Trill on the Hill is opposite the entrance to Trinity Hill Nature Reserve.
You can park in the Trill in the Hill field, or the nature reserve car park.
 
This is a link to a google map and directions:
 https://goo.gl/maps/g8vjNG9sQiRC6Vyw5

This is the big picture:

And from a Buzzard's eye view;

If you get lost,  give me a call on 07980 601830 - I might be able to help!