Everything is visible and crystal clear. Sunny conditions are great to learn in if you have the proper eyewear. Sun that glances off ice can effectively burn unprotected eyes. Use polarized and mirrored lenses in your sunglasses or goggles. You won't be able to see the bumps or true surface texture as well,and shadows are darker.
Flat light can be present when it's lightly snowing.
This is very intuitive riding, like riding with a blindfold on. Obstacles are even harder to see, as are other skiers and riders. This is not a good choice for beginners. For any night-riding excursion, either at a resort or in the backcountry, use clear lenses in your goggles or sunglasses. You still need wind protection but don't want to hinder your ability to see detail.