You may want to go on a couple of different trips during your holidays. Many types of boats offer whale watching. Large ones provide stability on the ocean. Some have upper decks for greater viewing capacity. Rafts, or zodiacs, are more adventurous, more intimate and give more of a 'whale-eye' view of the surroundings.
Whale watching by kayak is the ultimate in awesome.
Explorer - 48 Ft. The ocean is flat, making the whales easier to spot. Zodiac rafts are extremely exciting but not recommended for pregnant women or those with bad backs. The price for kids is usually half of the adult fare. Larger boats provide them with room to run around.