California is home to some of the most breathtaking road trips in the world. Here are a few of the most popular:

Pacific Coast Highway (PCH): This iconic highway stretches along the California coastline, offering breathtaking views of the Pacific Ocean, rugged cliffs, and scenic vistas.

Highway 1: This scenic drive follows the rugged coastline of Central and Southern California, offering stunning views of the ocean, beaches, and cliffs.

Route 66: This historic highway takes you from the heart of Los Angeles to the California-Arizona border, passing through deserts, mountains, and small towns.

Sierra Nevada Byway: This scenic drive takes you through the Sierra Nevada Mountains with views of rolling hills, snow-capped peaks, and crystal-clear lakes.

High Sierra Road Trip: This rugged journey takes you through the backcountry of the Sierra Nevada Mountains, offering views of remote trails, historic mining towns, and stunning alpine scenery.

Volcanic Legacy Scenic Byway: This scenic drive takes you through some of the most active volcanic regions in the United States, offering breathtaking views of volcanic landscapes, forests, and lakes.

Lake Tahoe Scenic Drive: This scenic drive circles the stunning Lake Tahoe, offering breathtaking views of the clear blue waters surrounded by snow-capped peaks.

Each of these scenic drives offers a unique and unforgettable experience, making California a prime destination for road trippers seeking breathtaking views and scenic landscapes.

• Sierra Nevada: The best time to take a road trip in the Sierra Nevada Mountains is during the summer months of June through September when the weather is warm and the roads are generally clear. This is also the best time to see the wildflowers in full bloom, hike and enjoy outdoor activities.

• Pacific Coast: The best time to take a road trip along the Pacific Coast is during the summer months of June through September, when the weather is warm and sunny and the beaches are at their best. This is also the best time for whale watching, fishing and beachcombing.

• Death Valley: The best time to visit Death Valley is from October to April when the weather is cooler and more comfortable. During the summer months, temperatures can soar well over 100°F, making it unbearable for many visitors. Winter is also the best time to see the desert wildflowers in bloom and enjoy scenic hikes and outdoor activities.

California is a popular destination for road trips, and the cost of a road trip can vary depending on your travel style and preferences. Generally, the cost per day per person can range from $50 to $150 or more, depending on your accommodation, food, and activities.

Accommodation can range from budget hostels to luxury hotels and resorts, with prices ranging from $20 to $500 per night. Camping is also a popular option and can cost around $20 to $50 per night.

Food costs can vary widely, depending on whether you eat out at restaurants or cook your own meals. A budget option would be to cook your own meals using local groceries and farmers' markets, which can cost around $5 to $15 per meal. Dining out at restaurants can cost anywhere from $10 to $50 per meal.

In terms of activities, there are plenty of free or low-cost options, such as hiking, sightseeing, and visiting parks and beaches. However, some activities and attractions can be quite expensive, such as theme parks, museums, and tours, which can cost anywhere from $20 to $100 or more per person.

Renting a car is a popular option for road tripping in California, and costs can vary depending on the type of car and rental period. On average, a mid-size car rental can cost around $30 to $50 per day, but can be more expensive during peak travel seasons.

It's important to budget and plan ahead for your road trip in California to ensure you have a comfortable and enjoyable experience. By doing some research and making smart choices, you can have an amazing road trip in California without breaking the bank.

There are many great guidebooks and road maps available for a road trip in California. Here are some popular options:

• "Moon California Road Trip" by Stuart Thornton - This comprehensive guidebook includes detailed itineraries, insider tips, and recommendations for places to stay and eat along the way.

• "Lonely Planet California" - This guidebook covers all of California's top destinations, including San Francisco, Los Angeles, and San Diego, as well as lesser-known regions such as the Central Coast and the Sierra Nevada mountains.

• "California Road & Recreation Atlas" - This detailed road map includes topographic information, campgrounds, hiking trails, and points of interest, making it a great resource for planning a road trip.

• "Rand McNally Easy To Read California State Map" - This map features easy-to-read cartography, detailed street information, and points of interest, making it a great option for those who prefer a traditional paper map.

• "California Highways: A Descriptive Record of Road Development" by David W. Jones - This historical guidebook provides an interesting look at the development of California's highways and is a great read for history buffs or those interested in the evolution of road travel in the state.

When planning a road trip in California, it's important to keep in mind the various regions and their unique offerings. Some popular routes include driving the Pacific Coast Highway, exploring the wine regions in Napa and Sonoma, and driving through the desert landscapes of Joshua Tree National Park. It's also important to research any road closures or construction projects that may affect your route and plan accordingly.