This past weekend my husband's siblings came to the Seacoast for a visit. It was so nice on Saturday we spent the entire day at Long Sands in York. I noticed today (which at the time of writing this is Tuesday) that Steven's tootsies were looking FILTHY on the bottom. They almost looked like he had been walking on asphalt. I judged him for a good ten minutes and then he pointed out that mine were pretty dirty as well. Color me embarrassed! We retraced our steps and started wondering if maybe it was from our trip to the beach.

Sure enough, after a quick Facebook search, I found The Town of York Maine Parks and Recreation Department posted that someone noticed black residue on the sand and it is currently being investigated. They don't believe it is oil or a petroleum based product according to Maine's DEP Communications Director, David Madore.

According to some Facebook users, people who went to Newcastle beach over the weekend are also dealing with a case of stained feet. It doesn't come off with soap and water no matter how hard you scrub!

I then went down a Reddit rabbit hole where of course other people lamenting about their stained feet. Someone said they had the same problem in Maine last year and it was caused by these very small bugs that wash up on the sand. I think I will trust the professionals who are investigating rather than the weirdos on Reddit. No disrespect to the weirdos on Reddit. I am clearly one of you.

LOOK: Here are the 50 best beach towns in America

Every beach town has its share of pluses and minuses, which got us thinking about what makes a beach town the best one to live in. To find out, Stacker consulted data from WalletHub, released June 17, 2020, that compares U.S. beach towns. Ratings are based on six categories: affordability, weather, safety, economy, education and health, and quality of life. The cities ranged in population from 10,000 to 150,000, but they had to have at least one local beach listed on TripAdvisor. Read the full methodology here. From those rankings, we selected the top 50. Readers who live in California and Florida will be unsurprised to learn that many of towns featured here are in one of those two states.

Keep reading to see if your favorite beach town made the cut.

The 100 Best Places to Live on the East Coast