Things you might want to bring on the whale watch:
You should be prepared for a variety of weather conditions.
Have
several layers of warm clothing (particularly early in the season)
available; have foul weather gear available.
It's always better to be a "MORE-ON" than a
"LESS-ON", i.e., you can always take off layers of clothes if you are
too warm, but if you are cold, it's hard to add layers that you don't
have.
... under cold conditions as much as 80% of your body heat
is lost through your head. During warm weather a hat is needed to
protect you from the sun, rain, etc..
Sun screen
... that blocks UVa and UVb.
VERY IMPORTANT!
Sun glasses
... VERY IMPORTANT!
Sea-sick medication
.... If you are prone to motion
sickness, take medication before coming on board
Camera and film
Binoculars
For offshore trips (all of the above and the following):