Thanks Felipa for the info on Lark Camp - which is a thread creep in the context of Rainy Camp. Sadly I shall have to "virtually" give up on this one, since the singing-related workshop and the only (2) singing sessions are all scheduled at PST times which equate to "wee small hours" for us folks here in the UK.
The Lark Camp organisers should take a cue from Rainy Camp, who are offering plenty of workshops and song circles at UK-friendly times.