National parks get a lot of attention, but state parks are also great ways to see America's beauty.

Courtesy of Katherine Parker-Magyar

As a travel writer, I've visited all 50 states — from the rocky headlands of New England to the emerald waters of the Pacific and back again.On every journey from sea to shining sea, I'm always struck by the wondrous diversity of America's landscapes. And although most travelers prioritize national parks for outdoor excursions, state parks are underrated (and often less crowded) gateways to the nation's wild beauty.From the Mojave Desert to the redwood forests, here's what I say are the top 10 state parks to visit across the US and why I recommend visiting them.

The towering cliffs of Kauai's Nāpali Coast feel like a paradise.

Kauai's Nāpali Coast State Wilderness Park has incredible views.