Definitely! Your trip across these coastal towns sounds like a fantastic plan. Here are some travel tips for a memorable journey:

Best Time to Visit:
These coastal towns in South India are a blissful retreat almost all year round, but the best time to visit is during the winter months (October to February), when the weather is cool and pleasant.

Route and Accessibility:
Panaji, Mangalore, Gokarna, and Udupi are all well-connected by road, rail, and air. From Panaji, you can travel south to Mangalore, and then go on to visit Udupi and Gokarna using public transport or rented cars.

Altitude and Acclimatization:
These locations are all at sea level, with no significant altitude concerns. However, stay hydrated to avoid any discomfort while traveling around.

Accommodation and Booking:
Pre-book your accommodations, particularly during peak tourist season (October to February), as these areas get crowded. Accommodations ranging from luxury hotels to homestays are available in these cities.

Clothing and Essentials:
Light cotton clothing is advisable due to the tropical climate. Carry beach essentials like swimsuits, sunscreen, hats, and sunglasses, but also pack an umbrella or raincoat as sudden showers can occur.

Health and Safety:
Carry a general first-aid kit and any personal medication. Remember to be cautious while swimming in the sea, heed the warning signs, and don't venture too deep, especially during high tides.

Local Etiquette and Respect:
Respect the local culture and traditions. Indian attire might be preferred in temples; check specific dress codes if any. Be courteous to the locals and maintain cleanliness around the beaches and public places.