About 250 members of the military have joined the search in Waverley, N.S., Monday morning for a mountain biker missing since Thursday.

Marty Leger was expected home Thursday afternoon. He told family he was going for a ride on his mountain bike near Spider Lake.

marty leger search

A helicopter lands near the search site for missing cyclist Marty Leger Monday morning. (Jean Laroche/CBC)

One of the search members is Larry Labadie, a civilian RCMP member flying a search helicopter.

"The area is fairly large here and with the helicopter, it gives you a good tool to cover that area pretty quick," said Labadie.

He said the helicopter has two trained spotters, one on board each side.

"It's a good tool, but you still need that search from the ground. You don’t know what could be hiding underneath the trees," he said.

Labadie has been with the RCMP for ten years. It's the first time he's seen the military join such a search.

View Missing biker in a larger map

The current search zone is 80-square kilometres, most of it dense woods and rough terrain.

Lt.-Col.Chris Ayotte said all of the soldiers are trained specifically in military search.

"Which has good applicability to this, so understanding the requirements to search slowly, deliberately, and some of the same characteristics that are employed by civilian ground search and rescue."

RCMP Cpl. Scott MacRae said the warm weather increases the chances of survival. 

He said with some searchers going back to regular duties after the weekend, they called the Canadian Forces for help to sustain their numbers.

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Search and rescue crews are combing the area around Spider Lake, searching for a missing mountain biker who didn't return home Thursday afternoon. (RCMP)

The search for information

Police also say they're looking for a man they believe was in the area at the same time as Leger on Thursday.  

“This male was believed to go into the woods shortly after Mr. Leger. We would like to speak to him, just hoping he might have some information,” said MacRae.

They believe he was driving a silver vehicle, possible a Subaru, with a bike rack on the roof.

“We’re actually looking for anybody who may have been in and around the Spider Lake area, the trail, Thursday afternoon when Marty Leger went biking,” said MacRae.

Search and rescue crews from all over the Maritimes have been combing the trails around Spider Lake all weekend.

Police are asking anyone who might have seen Leger before he disappeared to contact them.