My problem is this. Time. Finding a good heather site is time consuming.
Fro good site here you are. First find a good well managed heather moor, then find an accessible, note that wee point carefully, and sheltered site, shelter is best notified by bracken and ferns. This preferably behind a locked gate.
Then find the owner and get permission and a deal set up. this is not, any of it a five minute affair.
Having achieved that then there is the matter of having suitable hives for the heather. They should ideally be full of brood, full of bees and as strong as you can make them with in the constraints of the hive type. there is a massive death rate on the heather, think spiders and go up in a dawn sometime to see the webs which on some moors virtually cover it!
Depending where you are there are sites available. For instance the New forest in hampshire owned by the Forestry commission have numerous sites within their borders these are managed for them by the Hampshire BBKA contact them if you want to site bees there. The sites are all aproachable via locked and gated vehicular tracks. Had my bees down there last summer and managed to collect a crop.
The other problem with heather is some years are better than others, at least round here. 2007 and 2009 were useless on Dartmoor but 2008 was good. Guess which year I didn't take my bees there? In the useless years the colonies come back lighter than when they went and of course the timing is not ideal for using Apiguard as they don't return until about the first week of September.
I'm 350 metres above sea level and half a mile from plentiful moorland heather. Our winter starts about 3 weeks before the rest of the county and lasts around 3 weeks longer. Is there any advice, specific to my sort of location, that I need to know - county bka and information books aren't really much help in my micro climate!!