gym with swinmingpool
If you are looking for a gym with a swimming pool in Malad City Id, it doesn't look like there is one. There is a gym listed but a pool is not listed as one of their services.
This is a small town, with about 4,000 residents. There is lodging listed on the city's website, but they appear to be small enough that none of them has their own website, so doubt they would have pools. There is a public pool listed on the city website, but I assume it is open only in the summer (probably June-August).