Sure, Thailand is a wonderful destination! Each city has unique offerings. Here are some travel tips for your visit to Phuket, Pattaya, and Bangkok.

Best Time to Visit:
The best time to visit is during the cool and dry season between November and April. Avoid the monsoon season from May to October as it can disrupt your travel plans.

Route and Accessibility:
The best way to travel between Bangkok, Pattaya, and Phuket is by plane or bus.
Bangkok and Phuket are well connected with the international flight network. Pattaya is just 2 to 3 hours from Bangkok by road.

Altitude and Acclimatization:
These locations are at sea level, so altitude sickness is not a concern. However, ensure you stay hydrated especially during the hot season.

Accommodation and Booking:
There are plenty of accommodation options in all three cities ranging from budget hostels to luxury resorts. Do book hotels in advance, especially during high season.

Clothing and Essentials:
Pack lightweight and breathable clothing. Swimwear is a must if you plan to visit the beaches in Phuket and Pattaya. Also, remember to pack a good sunscreen and bug repellent. In some temples, modest dress is required.

Health and Safety:
Avoid tap water and stick to bottled water in Thailand. Street food is delicious but eat from stalls where you see a high turnover of food to avoid food poisoning. It's recommended to have travel insurance.

Local Etiquette and Respect:
Thai people are generally polite and reserved. Respect local customs and traditions especially when visiting temples. It’s considered rude to touch people's heads or point with your feet at things. Also, never disrespect the King or any image of him, as it's a criminal offense in Thailand.

Have a fantastic trip!