SPOKANE, Wash. -

As thousands of people prepare to flood into Riverfront Park in downtown Spokane Thursday, a number of people are busy preparing the park for the 4th of July celebration.

Near the Lilac Bowl, the iconic fireworks display is nearly complete. More than 1,000 mortars are set to launch and explode in the air around 9:45 p.m. Thursday.

Matt King and his team from E.F.I. set up the perimeter and are making the final connections between fuses.

"Some of those other little (fireworks) at the fireworks stands, they're great for your kids. But if you want some adult fun, these are the kind of (fireworks) that'll wake you up," Matt King said with a smile.

King says it takes three days of work for a 16-minute show.

"The last half, almost half of the product goes off within the finale," King said.

200 yards away, Clint Allen prepares one of his three Melon Madness booths.

"We'll have a booth right here we'll do berry kebabs in, we also have down by the carousel and the fountain we have one right there. Then tomorrow we'll be setting one up in Coeur d'Alene park in Idaho," Allen said.

Allen will spend 40 of the next 48 hours working. With July 4th falling after Hoopfest, it's the busiest week of the year for many vendors.

"In a week period they set up, tear down, set up, tear down because you can't keep them here," Allen said. "They have different promoters for each show." 

Allen is hiring 15 kids to work at his three booths, in what stands to be his most profitable week of the year.