Take a look at these underwater hotels, restaurants, and a spa below for something truly different.

Poseidon Undersea Resort

The Poseidon of Fiji underwater resort is built 40 feet below, and is going to open in 2009.

The resort offers a 16-passenger luxury submarine tour, and guests are also provided with a personal Triton submarine for excursions on their own. Reservation is welcome at around $1,500 a night.

Take a look at the video to get a feel for what it will be like underwater.

Underwater Hotel in Istanbul

Istanbul will open its underwater hotel in 2010, which will include restaurants, exhibition halls, and sea view rooms. It is said that the underwater hotel has the visibility of the Istanbul Bosphorous Strait, which links the north of Black Sea with the south Sea of Marmara, and is about ten feet.

Experts think that the Istanbul hotel may not be deep enough to offer that underwater view appreciation, even though it will be 7 floors under sea level.

Jules' Undersea Lodge

This lodge is located in Key Largo, Florida, at 21 feet below, and offers services such as weddings, hosting tourists, and divers. Although guests of Jules Undersea Lodge require a diving certificate, it will only take three hours to complete one.

Guests will enjoy two private bedrooms, with 42-inch glass portholes, and a living room with DVD player. The building is equipped with hot showers, air condition, kitchen, and books. Rates begin at $375 a night for one person, including the diving course, and light breakfast and dinner. For $150 dollars more, you can also get certified, and as certified divers, you will get unlimited diving.

The Hydropolis

The Hydropolis in Dubai is determined to be the world's first luxury underwater hotel. It has 220 submerged suits, costs around $5,500 a night and glass bubble at 66 feet below the Persian Gulf. The Hydropolis is set to open late in 2009, and offers guests a giant ballroom, concert hall, open air-shows, and views of surrounding skyline above the sea surface.

Here is a look at how the Hydropolis is being constructed.

Conrad Maldives Rangali Island

This luxury resort has the glass bubble Ithaa undersea restaurant, and it is only five meters below. Have a look at this video to see what it is like to have your dinner served while watching the fishes around you.

Here is a different view of this Ithaa undersea restaurant.

Huvafen Fushi Resort, Maldives

This is the world's first underwater spa, where you can enjoy rock massage, pearl massage, and body mud wrap in the underwater treatment rooms while enjoying the soothing sound of sea life at Lime Spa.

With many choices offered, from underwater hotels, to underwater restaurant, to underwater spa, why not go for an extraordinary experience?

Gamirasu Cave Hotel, Turkey

The cave was originally inhabited by the Christian monks in the Byzantine era for more than 5,000 years. The volcanic rock insulates the cave, keeping the temperature naturally comfortable. Opened in 1999, the restored cave hotel has a total of 18 rooms at around $100 - $150 per night.

Kokopelli's Cave, New Mexico, USA

This is actually a privately owned luxury cliff dwelling in Farmington, New Mexico. The one bedroom cave home is carved from a 65 million year old sandstone formation. For about $280 per night, not only you will get a "living-in-cave" experience but also a superb view of the La Plata River as well as La Plata and San Juan mountains.

2. TREE HOUSE

Woodpecker Hotel, Vasteras, Sweden

This is a tree house built on a 130 year old oak tree located in the Vaserparken park. At 13 meters above ground, the only access to the tree house is by a rope ladder. The tree house was built by a Swedish artist, Mikael Genberg. Even though small, the tree house is furnished with all the basic amenities. As this is the only tree house in that area, early booking is necessary and expect to pay around $300 per night.

Green Magic Tree Houses, Kerala, India

This is a tree house built on a tropical rainforest tree at around 100 feet high above the ground. The only access to the tree house is via a hanging bridge. As the tree houses are located in a protected rainforest, they are all eco-friendly and use alternative energy to keep running. There are four double rooms in two tree houses. Costing around $250-$300 per night, each room is equipped with a bathroom and telephone.

3. ICE

Ice Hotel, Sweden

Ice Hotel of Sweden is the original and the world's first ice hotel made of 6,000 square feet of ice and snow. This hotel only exists from December to April every year since 1990. At an average temperature of about 17 degrees Fahrenheit, the hotel beds are also specially made of ice and snow, topped with a couple of layers of reindeer skins with a thermal sleeping bed for the guests to sleep. The hotel charges around $200 per night. It has 80 rooms including suites, a church and a bar called the Absolute Icebar.

Alta Igloo Hotel, Norway

This hotel is made of snow and ice, measuring about 2,000 square meters. The hotel is decorated with ice sculptures depending on the theme set each year, for instance, Viking myth (2004), Norwegian fairytales (2005) and wild animals (2006). The temperature in the igloo remains between minus 4 and minus 7 degrees Celsius. To ensure comfort of the guests, the bed is made up of reindeer hide mattresses and a thermal sleeping bag. The hotel has 30 rooms which cost around $250-$300 per night.

4. DESERT

Al Maha Desert Resort, United Arab Emirates

This luxurious hotel has received world recognition for its architecture which comprises 40 Bedouin-tent shaped villas and two suites. The resort has a full spa complex with a large pool and gym. Each room is equipped with air-conditioning, a giant bed and a luxurious bathroom, costing between $800-$1500 per night.

5. UNDERWATER

Utter Inn, Stockholm, Sweden

This is an underwater hotel with a floating top which looks like a little red house in the Lake Malaran. The bedroom is like an underwater hatch with windows. This is in fact another creation of Swedish artist, Mikael Genberg. Access to the underwater hotel is by boat. Meals will also be delivered by boat. A night stay with dinner costs around $350.

Jules Undersea Lodge, Key Largo, Florida

It claims to be the world's first underwater hotel, 21 feet below the sea. It was originally built in the 1970s as a research lab off the coast of Puerto Rico. It was only opened to public in 1986. The only access to the hotel is by diving for 21 feet underwater. Each room is equipped with a kitchenette, shower and window (for underwater viewing), costing around $350 per night.

6. CAPSULE

Capsule Inn, Tokyo, Japan

This is more like a capsule than a standard hotel room. These capsules are made of reinforced plastics. Each capsule has all the basic amenities such as TV, radio, alarm clock and lightings. The Inn also provides lounge and also shared bathrooms. It charges around $50-$100 per night.

7. FANTASY / WEIRD DECOS

Hobbit Motel, Woodlyn Park, Otorohanga, New Zealand

Hobbit Motel is one of the 3 unique motel units in Woodlyn Park. It resembles the authentic Hobbit home based on Tolkiens's books with the Hobbit furniture and circular windows. Comes with a very basic amenities, you can stay here for under $100 per night.

Propeller Island City Lodge, Berlin, Germany

This hotel is especially designed for people who like weird decorations and arts. Each room at Propeller Island Lodge is distinct in its own way. For instance, one room is orange in color, another comes with a slanted bed as if floating in the air. There's also a room complete with coffins that double as beds or you can even sleep in a lion cage. Cost per night comes to around $150-$200.

8. BIZARRE WALK-THROUGH EXPERIENCE

Queen Mary Hotel, Long Beach California, USA

Queen Mary was once a luxurious ocean liner and first set sail in 1934, carrying about 3,000 passengers and crew. During World War II, the ship carried around 16,000 troops at a time and also became a hospital for a short while. Right after the 1,001th voyage, the ship was permanently docked in Long Beach in 1967 and was transformed into a hotel with an interactive museum. Ghost sightings are quite common among the guests and the crew. However, if you can't see one, there is also the "Ghosts and Legends" tour, which is a special effect walk-through tour that dramatizes most of the ghostly stories reported on the ship. There are 365 rooms and suites. Price starts at around $150-$200 per night.

Old Jail Mount, Mount Gambier, Australia

This old jail house was transformed into a lodging aimed at budget travelers and backpackers. Guests will get the experience of being locked up during the night, pay legal fees, court appearance, eat in mess hall, sleep next to a toilet; all for less than $100 per night.

9. TRANSPORTATION

Imperial Boathouse, Hotel Cheong Mun Beach, Thailand

These boathouses were originally rice barges which are transformed into 34 luxurious beach-front suites. These two-storey boathouses are equipped with a luxurious bedroom, bathroom, dining area, living room and sunbathing deck, with a starting price of about $600 per night.

Exploranter - Overland Hotel, Sao Paulo, Brazil

This is actually a hotel on wheels. The hotel amenities include a shared kitchen, hot showers and a total of 28 beds. There is also a traveling chef on board who are also adventurous in preparing international cuisine. You can expect to pay less than $100 per night.

10. ANIMALS AND PETS

Dog Bark Park Inn, Indiana, USA

This is a two storey building in a shape of a giant beagle. For less than $100 per night, the rooms are well equipped with a queen sized bed, bathroom, fridge, microwave, hair dryer and a coffee maker.

Paw House Inn, Vermont, USA

This hotel is specialized for pets traveling with their owners. The pets get its own custom made dog bed complete with quilt and pillows. There is also a day care center for the pets to enjoy the scenic countryside. Price starts at around $200 per night.

The island is so small that I think there is only one movie theater on the island and no shopping malls!!! Even though you will encounter many shopping areas especially in the main city be prepared to walk a lot outside to go to different stores. Wear a lot of sunblock!!!This is important because on this island it is sunny and hot all year round and it might only rain 3-5 times a year.

My favorite things to do on the island is diving and snorkeling because of it's beautiful crystal clear water and nature underwater.Riding jetski's and water skying are also a blast.The island has a abundance of water sports. The best time to visit Aruba is February because of the local festivities and a holiday known as carnival that is more known from Brazil.Don't expect to find anyone unhappy at this time.This is when their are a lot of parties and locals wearing colorful costumes and you will see dancing in the streets with beautiful parades.The locals also drink a lot of alcohol (it's kind of their happy island source)and expect to find a lot of exotic cocktails.If you can't make it to Aruba in February then December is also a good time to go.

The island imports special firework from china and has hours long parties and firework shows before and on New Year in December.The best thing to shop for on the island is for jewelry and perfumes because the prices are much more reasonable then in the U.S. Don't waste your money on clothes too much because in teh U.S you find more variety and better prices. If you love gambling their are a lot of casinos there and you can take advantage because most states in the U.S don't have a lot of casinos.Some world poker tour competitions were held in Aruba.The traffic is different then in the States so if you don't take a hotel shuttle or tour guide because you want to rent a car you better pick up some information about traffic signals.

Another thing that is good of the island is that English and many other languages are understood or spoken on the island because even though Aruba only has about 100,000 inhabitants the island claims 40 different nationalities that live peacefully with each other.Very few countries have such a international mix and get along with each other. That is definitely something I miss because here in the States their is a lot of racism and stereotyping about different races.

Their are a lot of things to do in Aruba that are enjoyable and relaxing but the main selling point is the people that live here together that bring their traditions,foods,and culture to the table that created a special blend on the island.