Metro-North Hudson Line runs from Grand Central to beautiful towns along Hudson River. Round trip $15-30 depending on destination.

Cold Spring (1.5 hours): Antique shops, hiking trails, river views. Walk to Foundry Dock Park for Instagram-worthy Hudson Highlands shots.

Beacon (1.75 hours): Home to Dia Beacon contemporary art museum. Massive installations in converted factory space — Worth the trip alone. Trains every 2-3 hours weekends. Buy tickets at Grand Central or MTA app. Much cheaper than car rental plus upstate parking fees.