2018 marks the 49th year of Earth Day celebrations. Since its inception, the April 22 holiday has helped educate the globe's population, and even today, it's still focused on channeling positive energy toward solving environmental issues. This year's Earth Day theme is End Plastic Pollution. However you plan to spend Earth Day 2018, be sure to check out these freebies to reward yourself for your environmental consciousness. And don't forget to check back — we'll be updating this page with more offers as we see them! SEE ALSO: Reduce, Reuse, Save: 10 Ways to Help the Earth AND Your Budget Free Youfit Open House Stop by your local Youfit health club on April 23. From 9 am to 9 pm, you can take advantage of an Earth Day open house. Enjoy free workouts, games, giveaways, and prizes. Select locations will also offer free group exercise classes, as well as a Glow Stick Cycle Party. Free National Park Admission April 21 kicks off National Park Week, and parks all over the country will offer free admission on that day. But although you can enter the park for free, you may still have to pay for certain amenities and activities, including camping, boat launches, transportation, and special tours. Free Coffee Caribou Coffee has once again released a special Earth Day tumbler. It'll set you back $39.99, not including tax or shipping. However, it also gets you free coffee or $3 specialty drinks for the month of April. Free IKEA Event Select IKEA stores will host a Make Room for Nature event on April 21 and 22, and you can take part in workshops, offers, and giveaways. The weekend will focus on decorating your home with potted plants and other decorative elements inspired by nature. Check the events at your local store here. Free Grocery Prizes Head to your local Natural Grocers on April 22 to participate in their Earth Day festivities. You'll receive a reusable bag with any purchase and can enter to win a $100 gift card. A $25 gift card will be randomly given away at checkout every hour, as well. Plus, you can participate in the ladybug-counting contest through the grocery store's online magazine, giving you the chance to win a $500 gift card. And if you live in New England or the Mid-Atlantic states, you can swing by your local Wegmans to score samples and a reusable bag. From 11 am to 3 pm on April 21, Wegmans stores will be hosting a Food You Feel Good About event. You'll have the chance to sample tasty treats that are free from artificial flavors, colors, and preservatives, according to Wegmans. Also, you can bring in your own plastic grocery bags and exchange them for a coupon for a free, reusable Wegmans bag. Free Massages This freebie isn't explicitly for Earth Day, but if you're in need of a stress-relieving massage, Planet Fitness has you covered. Whether you're still tensed up from tax season or you're sore after spending a day planting trees, reward yourself with a free HydroMassage. Get a coupon and stop by a participating Planet Fitness location through April 21 to take advantage of this offer. Save on Glass Straws Embrace sustainable drinkware with the original glass straw from Glass Dharma. Choose from a variety of straw types, including smoothie and coffee straws. They're made in the U.S. and have lifetime guarantees against breakage. For the month of April, you can take 50% off Earth Straw singles and sets via the coupon code "Earth50". Get Cash for Your Old Phone Stop by any ecoATM kiosk location to recycle your old phone. If you go by April 24 and use the coupon code "EARTH", you can receive an additional 20% back on devices valued at $80 or higher. Readers, how will you be celebrating Earth Day this year? What are the best Earth Day freebies you've seen? Let us know in the comments below! Related DealNews Blog Posts: 7 Things to Buy in April (and 4 Things You Should Wait On) Reduce, Reuse, Save: 10 Ways to Help the Earth AND Your Budget You Won't Believe How Much You'll Save Thrift Shopping for Clothes