I was on Radiance from Hawaii to Vancouver in early May several years ago. The Islands were smooth, the 5 days from Hawaii to Vancouver we had one rockier day only. I took used bonine, a couple of green apples and mint tea, ate light meals and was fine by the next day when things were steadier. I have a weak stomach, it did not stop me and I would do it again in a heartbeat and have been looking at TA’s.