Before you trade in that student ID for a corporate badge, here are seven affordable destinations where the dress code is nothing but casual. From hiking volcanoes to snorkeling with technicolor underwater life to kicking back with a cold beer, these destinations are safe and easy on the wallet.

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Reykjavik, Iceland
The post-graduation month of June is a great time to visit the Land of Fire and Ice, where the temperatures are pleasant (mid-50s) and the days are long (think midnight sunsets and 3am sunrises!). Reykjavik is a hotspot for thrill-seeking Millennials with a long list of never-ending adventures like snowmobiling, glacier hiking, descending into a volcano and, of course, Reykjavik nightlife. Budget-conscious travelers will appreciate that it’s a small, walkable city with hop on/off buses as another great way to get around. Reykjavik Excursions offers “bus passports” with routes all around and outside of the city, including a loop of the island.

Costa Rica
Costa Rica’s abundant natural landscape offers tons of free outdoor activities like hiking through the cloud forests and coffee plantations of Monteverde, where you’ll likely spot a few monkeys. If you want to experience the death-defying forest zipline, it will cost you a pretty penny.  Save your money and take a bus to Playa Tamarindo, where you can surf all day and party all night. The Tiquicia Lodge in bustling San Jose offers great budget accommodations with breakfast included. Plan to eat at sodas, local family-run restaurants that serve a hearty plate of Costa Rican cuisine for just a few bucks.

Phuket, Thailand
With more than 36 sandy beaches, where all you need is a towel and snorkel gear, Phuket is a beachlover’s dream. After you save up for big-ticket airfare, the rest of your trip will be an incredible bargain, including Tint at Phuket Town, a great budget hotel. Here, you’ll find free Internet for uploading all those great photos and checking in on social media. Tasty street food vendors let you fill your belly on a dime. If you’re looking for an inexpensive day trip, take the ferry to Phi Phi Island or visit the marine national park at Phang Nga.

Grindelwald, Switzerland
Spend a week in the most picturesque spot in Europe, the Jungfrau Region, where the only gear you need are hiking shoes. While Switzerland is generally pretty expensive, the Mountain Hostel won’t break your budget, and is the perfect jumping off spot for the region’s multitude of challenging hiking trails. Make sure to visit Gletscherschlucht, a glacial gorge with walking paths and waterfalls. You’ll need to purchase a Swiss Pass to explore the area via trains and cable cars. If you’re able to indulge a bit, add the world-famous Top of Europe Tour to your pass, a cogwheel train that takes you to the highest station in Europe that will leave you with views that last a lifetime.

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Cairns, Australia
Put all those science credits to use and visit the Great Barrier Reef, one of the Seven Natural Wonders of the World. You might be surprised to hear that snorkeling the reef is not only cheaper, but offers the same breathtaking experience as a more expensive scuba dive. Half Day Tours offers budget excursions that will transport you to the best areas. If you blow your budget on this once-in-a-lifetime experience, spend the rest of your trip taking advantage of the free offerings in this part of Queensland. On the Esplanade, for example, right in the city center, there’s a picturesque lagoon that’s a great place to cool off and wile away the day listening to live music. A short drive from Cairns, you’ll find Stoney Creek Falls, a free secret hideaway nestled within the rainforest featuring fresh water swimming holes, rock jumps and waterfalls.

Rocky Mountain National Parks Tour
If airfare isn’t in your post-graduation budget, gas up your car, grab a backpack and head west. If you’re looking to rough it and experience the great outdoors, the Northern Rockies are the place to go. Plan to spend a couple of days in each park, starting at the local park ranger station where you can take advantage of free daily guided walks to get a lay of the land. Grand Teton National Park has more hiking trails than you can conquer and is dotted with lakes, canyons and peaks. Yellowstone, the world’s first national park, offers a different kind of wild life than you saw in college—you’ll see everything from bears to buffalo. Stay at the historic, yet budget-friendly Old Faithful Inn (book early), the largest log structure in the world, where you can actually watch Old Faithful erupt from the cafeteria. End this epic adventure at Glacier National Park and spend the night in an authentic tepee at the Lodgepole Gallery and Tipi Village on the Blackfeet Indian Reservation.

The Florida Keys
Margaritaville awaits you along the 113-mile stretch of the Overseas Highway, where you’ll see some of the state’s most picturesque beaches, kitschy roadside attractions and old-school seafood shacks. Trade in your travel itinerary for flip-flops because the Keys give casual a whole new meaning. Plan to stop on a whim anywhere along the route and chances are you’ll find a roadside stand where you can snorkel, kayak or enjoy a cold beer. Walk across famous Seven Mile Bridge connecting the Middle and Lower Keys because the turquoise blue waters make the perfect selfie backdrop. Drop your gear at the Seashell Motel & Hostel or NYAH in Key West and head for the beach to swim with sea turtles, nurse sharks, parrot fish and spiny lobsters along the shallow reefs. If you’re not burned out on history, visit the Ernest Hemingway House and hang with six-toed cats, actual descendants of Hemingway’s beloved felines.

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