Bourne is where Cape Cod begins, and most people blow right through it — which is both its limitation and its advantage. Cross the Bourne Bridge or the Sagamore Bridge and you are on the Cape, but the town is spread out, practical, and more mainland-adjacent than vacation-brochure. The Cape Cod Canal is the landmark: a public path along both banks for walking and biking, plus fishing from the banks. Confirm current path and parking rules before you treat it as the day's plan. If you want a walkable village center, look elsewhere. If you want an Upper Cape base twenty minutes from Falmouth's beaches, Bourne is the unglamorous smart play.
The swimming beaches in this guide sit on two different waters. Monument Beach and Barlows Landing are on Buzzards Bay — warmer, calmer, more of a family swim. Sagamore Beach is the Cape Cod Bay shore just north of the canal: long, quieter, resident-sticker parking, better for walking than a day in the water. Scusset Beach State Reservation is next door in Sandwich, on the mainland side of the canal mouth; it is not a Bourne town beach.
Dining is casual — harbor seafood in Cataumet, Main Street in Buzzards Bay, a diner-and-tavern mix near the bridges. You will need a car between villages. Nightlife is essentially none. Come for the canal, a bay beach, and a launchpad, not for a town that feels like the vacation itself.