Especially with a 250 (23 y.o. +, motorcycle endorsement): North, over the Port of Palm Beach flyover (great view of the Inlet and the Atlantic to the East), over the Blue Heron Bridge (at the top, immediately South is Peanut Island and the sandbar to the North is the widest part of Lake Worth) to Singer Island, then North/North-West back to US 1 (along the mangrove swam and McArthur Beach State Park…right turn at US1. Then, North to the fork in the road then along Juno Beach then Jupiter until the road meets up with the Jupiter Inlet and winds back West to US 1. Then, over the Jupiter Inlet bridge (the Jupiter lighthouse is to the right), first right turn then over the Jupiter Island bridge and North to Martin County (the Martin County part of Jupiter Island is one of the richest places in the world but, on the other hand, the foliage is high and there isn’t much in the way of mansions and oceans visible). North through Jupiter Island to the Northern end where there is a beach run by the US Fish and Wildlife Service (it was gifted to the Service which usually doesn’t run beaches). On the rebound, on a 250, go over the North bridge back to US 1 then ride South to Tequesta. You will pass through a large area of hills and dunes….what this part of Florida was before it was developed. This is a 55mph speed limit road (think pickup trucks doing 70) and I don’t suggest doing it on a 50. So, on a 50……..go back the way you came.