When we were looking for things to see and do in St Lucia, I came across a Real St Lucia Tours on the internet. A quick enquiry was answered very quickly and efficiently with a lot of information like the pricing, what it entailed and what we could choose to see. We really liked the fact that you could have a private tour! I quickly booked us in for the tour 8 months before we were due to go!
Please bear in mind that some of their packages/tours may have changed since we went in May 2015.