Two Dutch men were busted this week for trespassing and filming on federal property close to Nevada’s so-called Area 51 — the classified government site engulfed in alien conspiracy theories, authorities said.

Ties Granzier, 20 — who has nearly 740,000 YouTube subscribers — along with Govert Charles Wilhelmus Jacob Sweep, 21, were arrested Tuesday when deputies found their car parked near a gate about three miles into Nevada National Security Site property, the Nye County Sheriff’s Office said.

Both men told deputies they saw the “No Trespassing” signs at the Mercury Highway entrance to the high-security site, but wanted to look at the facility.

Granzier explained that he was a YouTuber, and authorities found several cameras, a phone, a laptop and a drone inside their vehicle, police said.

During a search of the cameras, deputies found video footage taken on national security site property, authorities said.

Both Sweep and Granzier were arrested on trespassing charges and booked into the Nye County Detention Center.

In his YouTube bio, Granzier describes himself as “that blonde on YouTube who builds boats and dog houses and stuff.”

A video of him building a duct tape boat in his backyard racked up nearly 560,000 views.

The trespassing incident comes just as Alienstock, a sci-fi-themed music festival that was born out of a viral “Storm Area 51” meme, has officially been canceled for fear the event would become a Fyre Festival-esque disaster.

Matty Roberts, 21, who created the viral “Storm Area 51, They Can’t Stop All Of Us” Facebook event, had planned for the festival to take place starting Sept. 19 in Rachel, Nevada, 27 miles north of where Area 51 is located.

But this week, Roberts announced the event was not coming together properly, and he was pulling the plug.

Instead, Roberts will host a one-night-only “Area 51 Celebration” at an events center in Las Vegas on Sept. 19.