Hi Jill:
For two people, one of the best kayaking tents, in my opinion, is the Wanderer 2 from MEC. Two doors, huge vestibules. Spacious and versatile.
For one person, the Wanderer 2 is a bit much, so a smaller tent such as the MEC Camper 2 would be better. Smaller footprint and vestibules (and packed size!), but still comfy for one person.
For camping in cooler weather (like the outer coast), a non-mesh inner tent is warmer. The all-mesh inner tents allow more air movement and are great for warmer temps, like the Okanagan, or down in the States. But as you mentioned, wind-blown sand can be an issue.
Other brands with a similar configuration would do as well. You don’t have to spend a lot of money, but buy from a reputable Outdoor store, and stay away(!!!) from Cdn Tire, Walmart etc.
H