What's the best non-risky way to invest $70,000?

I'm not too keen on stocks, gambling, or any such potentially sketchy investments. Am just locking it up in a savings account with not enough interest right now. Maybe getting a mortgage on a condo in my hometown of Vancouver? Maybe renting our current house in Seoul to make $500/month? (The $70,000 is used in Korea as a one-time loan to the owner paid back after 1 year in lieu of monthly rent.) Any better ideas?