Road Trip to 4 Less Visited and Less Crowded National Parks! You can fly into El Paso, Texas and hit all of these New Mexico and Texas parks within a week. • White Sands National Park • Carlsbad Caverns National Park • Guadalupe Mountains National Park • Big Bend National Park Best National Parks to Avoid Crowds | USA National Park Road Trip | Best National Parks Without Crowds | Best Least Crowded National Parks