I built this tool because I was genuinely frustrated with the "planning tax". Every time I wanted to plan a trip, I ended up with 20+ tabs of climate charts, airport distance maps, and "Best time to visit" listicles that were 90% ads and SEO fluff. I just wanted a way to filter the 63 parks by hard data: Transit time from the airport, optimal weather windows, and stargazing quality. I shared an early version of this on Reddit last week and it kind of blew up (60k+ views in a day), so I spent the last few days cleaning up the UI and adding features the community asked for—like the "avoid these months" data and local browser storage for your favorites. A few things about the tool: * No BS: No ads, no paywalls, no tracking. * Fast: It runs entirely in your browser. * Open Source: You can check out the code on my GitHub (linked in the description). * Logistics-First: It calculates the actual slog from major hubs (LAS, SFO, etc.) so you don't book a "quick weekend" to a park that's an 8-hour drive away. I’m looking to add permit deadline alerts or crowd density data next. I’d love to hear what would actually make your trip planning easier.

US National Park Finder - National Parks, Mapped: Filter by weather, transit & stars

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