We recommended dressing in layers even during summer. The temperature is always 10-15 degrees cooler on the water than it is onshore. We also recommend bringing sunscreens, sunglasses, and rubber-soled shoes with good traction.
Yes, they do. You're guaranteed to see whales in their natural habitat. In the unlikely event of no whale sightings on a regular trip, you will receive a 1% PASS (not a refund) for your future cruise.