Calgary's Weaselhead Flats is open again after the discovery of undetonated explosives unearthed by June's flood forced its closure, but the city is still warning people to be wary.

The park is a popular place for school field trips because of its history as a military training ground and its unique natural environment. Between 1908 and 1998, the Canadian Armed Forces conducted training exercises at Weaselhead Flats and left behind numerous unexploded devices, which were uncovered by floodwaters last summer.

"We've been working with the Department of National Defence (DND) to determine the extent of the risk and what was needed to ensure that we could reopen the park safely," said Chris Manderson, natural area management lead with the City of Calgary's parks department. "We're followed the advice of DND, which considers the park to be safe. We expect the likelihood of finding more ordinances to be remote."

Visitors to the park are being advised to stay on designated pathways only.

There is still potential for explosives to exist in areas off the pathways.

Manderson also adds many of these areas are already considered off-limits to the public in order to protect the natural environment.

If visitors to the Weaselhead Flats to see something that looks like an explosive, they are warned not to touch it. They should immediately leave the area and call 911 to report the finding to police.

Parts of Bowness Park to open by summer

The city said last week that Bowness Park would be partially reopened by summer. 

The redsign plans include a new concession and tea house, a rental shop and a lagoon.  

Redevelopment of the 100-year-old park actually began in 2012 but last June's flood caused major setbacks.  

Scheduled completion dates will be posted on the city's website closer to summer