I realise it's not a triathlon, but I received the email this morning advising that entries are opening this afternoon for this event which starts and finishes in front of Longleat House. There are two options - a 100 km and a 100 mile - and a number of nicely stocked food stops which last year had plenty of home made cake as well as energy gels etc. so could be good training for events later in the season.
There are several big hills for those who like climbing (I'm afraid that I walked some of them last year) but the downhill straight run into the finish on the Longleat estate more than makes up for the pain.
Well worth a look if you're not too far away and fancy a ride.