Antonia,
Me again, hope I don't upset anyone in Robin Hoods Bay with this, but the festival, which I attend every year (cept last cos my beloved was ill)is a tiny event. Two venues, one in a hall another in the Dolphin are great as far as they go, but please do not get the impression that this is a major festival, it's not. It's a very pleasant gathering and the "Bay" is beautiful. During Whitby Folk Week, see my earlier thread, they have "half a day at the Bay" for either 4 or 5 days when artists from the main festival go down the 5 miles to R H B and perform in the Dolphin. Local telephone number of the Dolphin which may prove useful to you is 01947 880 337 (Is that international 00 44 1947 880 337)
Hope you have a great time whenever you go