Hi there! I'm excited to help you plan your trip to Negombo, Bentota, and Hikkaduwa.

Best Time to Visit:
The best time to visit these Sri Lankan cities is during dry season, which normally falls between December and April for the western and southern coastal areas. This period is relatively less crowded and has calm seas, making beach activities feasible.

Route and Accessibility:
The most common way to reach Negombo is to fly into Bandaranaike International Airport near Colombo, as it is just 10km away. From Negombo, you can take a private cab or a public bus to Bentota, followed by a train or bus to Hikkaduwa. There are also private taxis available between these cities.

Accommodation and Booking:
All three cities offer a range of accommodations to suit different budgets. From luxury beach-front resorts to budget guest houses, there are plenty of options. Booking.com, Airbnb, and local travel agencies are good platforms to book accommodations in these cities.

Clothing and Essentials:
Pack lightweight clothes suited for tropical weather. Don't forget to carry swimwear, a hat, sunblock, mosquito repellent, and a waterproof bag for tech gadgets. Also, include a comfortable pair of shoes for city tours.

Health and Safety:
Stay hydrated and apply sunblock to prevent sunburn. Be wary of strong currents while swimming in the sea. Local water may not suit everyone, so it's advisable to drink bottled water. It's also recommended to have travel insurance covering medical expenses.

Local Etiquette and Respect:
In Sri Lanka, locals appreciate formal greetings. Removing shoes and hats before entering religious places is customary. Modest dressing is vital, especially at sacred sites. Also, remember to ask for permission before taking photos of locals.