Captain Pugwash was humorous, well-told, and fun, and I was actually pretty impressed with how well the author captured the spirit of classic high-seas adventure books like Treasure Island
(sans murder and anything truly terrifying, of course). The story moved and built into a great crescendo, and the ending was funny and grounded the tale. The kids and I also enjoyed the pictures, which were entertaining and full of action, movement, and color.
Although this is an old book, I think that Captain Pugwash is still a lot of fun for today's kids, and adults could really have a lot of fun reading this one aloud to kids. Really, I'm rather inclined to call Captain Pugwash a must-read for children who are into pirate stories.