Hello! I'm glad to assist you with your upcoming trip to Johor Bahru, Kuala Lumpur, and Kota Bharu in Malaysia.

Best Time to Visit:
The ideal time to visit these cities is between March and September, when the dry season prevails. During this period, the humidity levels are lower and there's less rainfall, making it convenient for outdoor activities.

Route and Accessibility:
All three cities are highly accessible by air. The quickest way is to fly into Kuala Lumpur International Airport and then take either domestic flights or buses to reach Johor Bahru and Kota Bharu. Car rentals are also widely available if you prefer road trips.

Accommodation and Booking:
All the cities have a range of accommodations from budget to luxury. It's best to book your hotels beforehand via reputable online booking portals. Kuala Lumpur as a bigger city has more options in terms of international hotel chains.

Clothing and Essentials:
The climate is tropical and humid, so bring lightweight clothing, preferably cotton or linen. Don't forget your swimwear, sun protection gear like hats, sunglasses, and sunscreen. A good insect repellent might come handy as well.

Health and Safety:
Ensure you have comprehensive travel insurance for emergency situations. The tap water in all cities can be of varying quality, so bottle-drinking water is recommended. Always respect local customs and regulations.

Local Etiquette and Respect:
Malaysia is a multicultural society with Malay, Chinese and Indian communities. It's important to dress modestly, especially while visiting religious places. Respect local etiquette and avoid discussing sensitive topics related to race and religion.