Tubing is one of the ultimate summer activities in Texas. Floating down the Guadalupe or Comal rivers while enjoying the scenery and the cool water is a perfect way to spend a hot afternoon. Thousands of people travel to New Braunfels, San Marcos, and the San Antonio area every year to tube, but it's not without dangers, rules, and guidelines that should be observed by regular tubers and newcomers alike. Here are five essential tips to heed before you set off down the river this summer.

Disposable food and beverage containers are illegal
The image of a Texan bobbing down the river with a six-pack of beer in a floating cooler might be emblematic of the state, but it's also no longer legal in New Braunfels. The city's Disposable Container Ordinance is in full effect, and those who break it risk a $500 fine. The ban includes aluminum cans, plastic water bottles, fast food containers, napkins, and anything designed to be thrown away after a single use. Instead, tubers should use insulated bottles, reusable food containers with snap-on lids, and canteens. Keeping the rivers clean from trash is how future generations will get to enjoy tubing.

A reminder: beer bongs do not count as reusable drinking devices.

Do not bridge jump
Yes, we know Steve-O jumped off a River Walk bridge in 2014 and was more or less physically fine, but he was very lucky. The rivers are only a few feet deep in some places, and may have sharp rocks lurking just below the surface. It's illegal to bridge jump, and it can cost a $500 fine if you do it. Steve-O faced several criminal charges for his stunt. Only enter the river at safe docking points.

Consider a professional tubing company
Legally, you can tube down any river and launch from all public access points. That said, tubing can be dangerous for weak swimmers or the inebriated. The best way to ensure your safety is in numbers and with good equipment provided by professional tubing companies. Several are around Central Texas rivers, including Texas Tubes, 444 Tubing Company, and Texas State Tubes. Better yet, they offer shuttles to get you back to your car after the tubing is done.

Make sure sunscreen's waterproof
River water is colder than a Winter Olympic judge's heart, but that doesn't mean the sun is not still something you need to be wary of. Climate change means hotter summers and brighter days in Texas, and the American Academy of Dermatology (AAD) reports sunburn and other sun damage to skin is on the rise, particularly in younger populations. Unprotected skin and eyes can result in painful burns and even skin cancer. Make sure you bring sunglasses, hats, and waterproof sunscreen.

Waterproof your electronics
It's an age of social media clout, and what looks better on Instagram than an idyllic float down a river? Capturing that perfect video is not worth losing your devices and polluting the river. Invest in floating, waterproof cases, and get a lanyard so they can tube on down the river themselves if you drop them. Just as many theme park accidents happen when guests wander into dangerous areas looking for dropped items, splashing after a device in a panic is a good way to make potentially deadly mistakes. Plan ahead, and a trip on the river can be much safer and more fun.