Test your National Parks knowledge with these 300 crossword puzzles! Organized into 50 easy, 225 medium, and 25 difficult puzzles, see how many you can solve correctly. In addition to the sheer fun and satisfaction of working out puzzles, science has shown that puzzle solving improves cognitive function, memory, and mood. This beautifully designed puzzle book features:

• 300 National Park-inspired crossword puzzles providing hours of brain-sharpening entertainment
• A range of challenge levels, from easy to difficult
• Layflat format that keeps the book open while you solve
• 6.5" 9" size, perfect for on-the-go puzzling

300 National Parks Crosswords is perfect for getting your mind in shape or for straight-out solving fun. Also available from the Life is Better with Puzzles series: 300 Science Crosswords, 300 Movie Word Searches, 300 Women in History Word Searches, 300 General Crosswords, and 300 General Word Searches.