Ah what a lovely place.
The OH and I had 2 x 2hr private lessons with one of the ESF guys called Dedier - who was born and raised in La Tania (carpenter during the summer) and he was excellent.
I've no idea about contacting instructors directly but Id definately recommend private lessons over group.
I had the option of 5 x 2 hour group lessons or 2 x 2 hr private as they worked out around the same price (ESF La Tania) and Ive already said what I picked

didnt regret it.