The simplest site to use is: https://www.windguru.cz/58

You can see the swell direction, height and period in one easy-to-view image and can scroll down to get other models and often you get secondary swell data as well.

White bay will be inadvisable. CGB as well; one time I didn't check the weather and a north swell hit overnight while I was anchored there. I escaped without grounding but as I was motoring out the channel, I had surfers surfing in next to me at the same time. If the water is 15 feet deep and a swell of 6 feet builds up while hitting shallow water, your boat can suddenly have no more water underneath it! The best place is the Virgin Gorda North Sound and it also lets you explore a couple of anchorages while there, so you don't get bored.