What to do at all 18 Amtrak Cascades stops from Vancouver, BC to Eugene with kids: beaches, children’s museums and a border crossing, with the free-kids rule for Washington trips and the stops to skip.

What to do at all 20 Gold Runner (the old San Joaquins) stops between Oakland, Sacramento and Bakersfield with kids: the Yosemite bus, the stops worth a day, and the ones to ride through.

What to do at all 18 Capitol Corridor stops from Auburn to San Jose with kids: walking minutes from the platform, a half-day and a full-day plan for each, and which stops to skip.

What to do at all 29 Pacific Surfliner stops from San Diego to San Luis Obispo with kids: walking minutes from the platform, a half-day and a full-day plan for each stop, the one moment to plan for, and which stops to skip.