When the sun is shining and the thermometer says “hello summer,” it can be tough to keep your workout routine indoors. But you also don’t want to break the bank with expensive new outdoor workout activities like kayaking classes or surfing lessons. Luckily, there are plenty of fun ways to exercise outdoors that won’t cost you a dime.

While popular outdoor favorites like swimming and running probably crossed your mind, you might be surprised by these five creative ways to exercise outdoors for free.

1. Plant a garden

“Start a garden, even a small one,” says fitness expert and Olympic trainer Dr. Doug Graham. While this isn’t going to turn you into a skinny minnie in just a few weeks, it’s certainly better than staying inside and watching soaps. In fact, gardening burns about 275 calories per hour for a 150-pound person -- and the best part: it’s fun! Plus, you’ll be able to grow healthy food, which can help you keep that bathing suit bod in tip-top shape this summer.

Live in a city without soil space? Join a community gardening group and squeeze in some social time with your workout. Learn how to grow the best garden by finding best gardening gear.