The local humpbacks are at their most active in the month of March. Why? The naturalists tell us it is because those still here have yet to mate and are getting, um, anxious before their return to Alaska to feed. This is among the very best times to get on a whalewatch boat and spend half a day in the presence of these magnificent beasts. If you're fortunate you'll see them breach (photo 1) or a competition pod fighting over a female (photo 2). The last photo was taken by gifted local photographer Monica Sweet. For more of Monica's extraordinary work go  here.  Don't let the season end without seeing Maui's gigantic treasures up close.