Kauai is one of the most beautiful Hawaiian islands, and it's also the oldest. When visiting Hawaii, most travelers think they know what to expect but are caught off-guard, especially when traveling to a place as unique as Kauai. Known for the adventures it holds and its dramatic scenery, there's no question as to why this island is so popular with newcomers.

It's important to remember, though, that just like any new destination, there are things to know before planning a trip. A visit to Kauai is one that's surely bound to be full of beauty and thrilling activities, and future visitors should be well-versed with these tips before setting out on their Hawaiian vacation.

8 Kauai Isn't Just Green, A Majority Of It Is Covered In Rainforests And Plants

Also known as the 'Garden Island,' Hawaii's northernmost island is covered by more than 75% with native flora. Whether it's one of the island's lush rainforests or a sprawling garden full of exotic plant life, it's certainly a sight to behold. From above, the island's native greenery gives it that trademark hue which is unmistakably due to the sheer amount of plant life that grows on this fertile isle.

7 You Won't Find Too Many City Centers... Or Any At All

Kauai has restrictions against buildings being more than four stories tall, which does keep its development to a minimum. On an island where nature reigns supreme, this is a very good thing, as it prevents the native land from being overtaken by resorts, businesses, and the like. For those visiting, don't expect any major hubs like one might find in Maui - the island of Kauai is known for being under-developed and beautiful in its remote scenery.

Related: Get In The Aloha Spirit At These Kauai Hotels

6 Rain Is A Definite Possibility, But Don't Let It Ruin Your Day

The conclusion can be drawn that thanks to the island's lush vegetation, there's also plenty of rain to water these plants. The north side of the island sees the most rainfall, whereas the mountain regions of Kauai experience bursts of rain showers that last maybe five minutes or so. The chances are that if it's raining, it won't likely last for long - and if it's really putting a damper on the plans, simply head to the other side of the island.

5 Rental Cars Are The Best Bet For Those Wanting To Explore Kauai

Since the island is underdeveloped compared to many others, public transportation will only get a traveler so far. Those visiting Kauai might want to consider renting a car upon their arrival in order to reach every destination and landmark they wish to see during their trip. The highways are in good enough condition, but do be prepared for the occasional dirt road if something is out of the way.

There is only one way up and one way down the island; a roadblock prevents travelers from crossing from the North Shore over to the West Shore. Travelers should account for traffic since there are so few options when getting from the North to the South Shore.

4 Kauai Is Known For Its Food Trucks

Food trucks abound in Kauai, where one can find at least 50 on the island at any given time, according to Makana Charters and Tours. Not only is the food from these mobile kitchens super affordable, but it's also some of the best! These dishes are curated by talented chefs who utilize local ingredients to craft the island's most traditional - and also modern - foods. No visit to Kauai would be complete without sampling at least a little something from a food truck.

3 Hiking Is A Must-Do Activity, But Just Be Prepared

Hikers will find a haven in Kauai, where the trails are seemingly endless and the scenery just as enticing. While some of the trails should only be traversed by experienced hikers, there are still many easier trails that still lead to awesome views and provide a great workout. Additionally, some of the island can only be seen via hiking, so it's a good idea to plan on at least a few in order to see its most beautiful, but remote, locations.

Related: How To Visit Jurassic Park: Kauai Is The Hawaiian Island That Shaped Your Childhood

2 The Best Deals To Kauai Happen During The Shoulder Season

This makes sense because a majority of tourists are likely booking peak summer trips to Kauai. For those who want to save a little money, and perhaps avoid the crowds, it's best to book during the shoulder season. This happens twice a year: between mid-April until June, and from September to mid-December. Since Hawaii does see warmer temperatures all year round, it's worth booking during these times in order to stick to a budget.

1 Commit To A Full Week Or Factor Kauai Into A Day Trip

For those who plan on exploring Kauai for a full week or more (and there's plenty to do in order to fill each day), seven to ten days is usually ideal. However, Kauai can also be factored in as a day trip for those who plan on island-hopping via plane through Hawaii. While this won't allow travelers to experience the full range of Kauai, it is a great way to get a taste of it for those who don't have the time to commit to a full week on the island.