Absolutely! A trip to the east coast of Peninsular Malaysia covering Kelantan, Terengganu and Pahang will offer you a delightful mix of culture, nature and cuisine. Here are some travel tips:

Best Time to Visit:
The East Coast of Malaysia is generally best visited during the dry season, from February to October. Avoid the monsoon season (November to January) due to heavy rainfalls which can sometimes lead to flooding.

Route and Accessibility:
Your accessible points are the Sultan Ismail Petra Airport in Kelantan, the Sultan Mahmud Airport in Terengganu, and the Sultan Ahmad Shah Airport in Pahang. From Kuala Lumpur, you can also take a bus or train to these destinations.

Altitude and Acclimatization:
These states are mainly at sea level with some hilly areas. Hence, acclimatization is not an issue in this case.

Accommodation and Booking:
Hotels, guesthouses and homestays are available in all the three locations. Making your accommodation bookings in advance is highly recommended especially during peak tourist seasons and public holidays.

Clothing and Essentials:
Light, breathable clothing is most suitable for the tropical weather. Don't forget your sunscreen, hats or umbrellas as it can get rather hot. Also, remember to pack a good mosquito repellent.

Health and Safety:
Stay hydrated and be cautious with street food, though it is generally safe. Make sure you have travel insurance, carry a basic first aid kit and know the location of the nearest healthcare facilities.

Local Etiquette and Respect:
The east coast states are more conservative, so dress moderately, especially when visiting religious sites. Respect the local customs and traditions. English is widely understood, but learning a few Malay phrases can greatly enhance your interaction with the locals.