Pau & Marc -- 14 Feet of Gasols on a 50 Foot Yacht

With a combined net worth somewhere in the $100 million range (maybe more) ... NBA superstar brothers Pau and Marc Gasol saved a few bucks by yachting TOGETHER in Spain this week.

With the 2012-13 NBA season officially over ... and zero combined championship rings to show for it ... the two 7-footers decided to chill on a fancy boat in Menorca, Spain.

... don't you ever forget!!!