Self-driving Highway 101 between San Francisco and Seattle serves up a rolling medley of diverse vistas and indelible experiences. But the chance to commune with California’s fabled old-growth redwoods, rules them all. It’s mesmerising just how far those colossal redwood forests stretch. Spanning five hundred miles, the tall timbers are never far from view as you travel up the Pacific Coast.

The oldest groves and tallest timber titans run just north from Mendocino, all the way up to Crescent City, close to the Oregon border. Over the course of several days, I revelled in the heart of tree hugger heaven. Before savouring the grand old groves, head for Mendocino, a charming hamlet, perched above the restless sea, on Highway 1.

I shadowed the wild wave-bashed coast, pulling over regularly to snap away heartily at the elemental theatre, as I winded through rustic villages like Fort Bragg and Westport, before rejoining Highway 101 at Leggett, where the world of the redwoods begins. Follow the signs to the famous One Log House. As the name suggests, it was hollowed out in 1946 from a single log, from a redwood tree over 2100 years old!

It took two men eight months of hard labour to build this five-bedroom log house. You’ll find it just south of Garberville, one of numerous quirky roadside attractions all along the Redwoods Highway. Well, America certainly knows how to lay on the quirk and another such spectacle is the Shrine Drive-Thru Tree, at Myers Flat. It’s got a naturally cleaved tunnel through the base of the trunk, becoming one of California’s one of earliest tourist marketing icons when it was touted to the world 90 years ago. And still they come, to drive their car through the tree.

But it’s the Avenue of the Giants which looms as the pinnacle experience within the Redwoods Kingdom. (Grab a free auto tour brochure at the entrance or download the commentary app.)It’s a wonderland, with one of largest remaining stands of old growth redwoods in the world, wrapped around a gorgeous 31-mile scenic byway, flanked by the flood-prone curve of the Eel River. All along the route, these monster trees jut right up against the roadside, to the point, where some of their trunks have been sanded back, so as not to rub against your car.

I was reduced to a state of slack-jawed wonder, at the dramatic wall of enormous russet trunks rocketing skyward, as I winded my through the forest. Feted as the world’s tallest trees, many of these redwood old boys reach higher than the length of a rugby football field, well over three hundred feet high - five times the height of the Statue of Liberty. And they’re also amongst the world’s oldest trees. Many specimens I ogled had been reaching for the sky for over two thousand years.

We sure are just a flicker, in geological time. When you’re purring through the Avenue of the Giants, Founders Grove is an excellent trail option, if you want to wrap yourself in the vertical majesty of these champions.  If you have the time, just north east of the Avenue of the Giants is the Six Rivers National Forest. Home to Willow Creek, this is where the Big Foot legend was hatched back in the 1950s. I can’t say I saw him, but the Big Foot Museum certainly arouses much curiosity, with some interesting anecdotes of sightings and some conveniently grainy “evidential’ footage.

After overnighting In Eureka, Highway 101 resumes its coastal romp, leading you through to cheery little Trinidad, strung around a rocky headland with picture-perfect coves. If you’re up for more tall tree glory, a short drive away is another Californian crown jewel, the Redwoods National & State Parks, which boast half of the world’s tallest trees. A fabulous stop is the “Trees of Mystery” near the coastal town of Klamath. It features many Giant Redwoods and a number of unusual tree formations, many of which can be seen from its Trail of Mysterious Trees.

Its Trail of Tall Tales displays some 50 chainsaw sculptures and carvings illustrating stories of legendary logger Paul Bunyan and his crew. My absolute favourite walk is the one mile loop trail into the Lady Bird Johnson Grove. It was dedicated in her honour by Richard Nixon, because she was such a key activist for preserving California’s ancient redwoods.

This trail packs a huge punch, allowing you to immerse yourself in the soaring grandeur of these trees, without much effort. It’s also quite fog-prone, so you may strike it lucky with ethereal silhouettes of these mighty trees in the mist. Heart-stealing stuff! After soaking up more wild, cinematic seascapes along the Pacific Coast, Crescent City heralds the end of the line. California’s northernmost city woos travellers to ogle at the 1856 Battery Point Lighthouse. Perched on a tiny island just off the beach, it can only be reached on foot at low tide.

Sure enough, I walked across the causeway, climbing the narrow spiral staircase to the lamp room, where you then crawl up a ladder and through a trap door. Why? The seraphic 360-degree view rewards you handsomely. As an aside, this seafaring town is certainly at the mercy of the ocean. In 1964, much of the town’s history was literally washed away in a massive tsunami. As recently as 2011, the tsunami waves generated by that catastrophic Japanese earthquake devastated the town’s marina.

Where to stay? All along the Redwoods Highway, there are plentiful accommodation options. But Eureka won me over as a must-stay destination. Founded by the California Gold Rush, with a quintessential old-style main street, the refurnished historic district brims with brightly painted shops in a pedestrian-friendly setting. Eureka is renowned for its astonishing trove of Victorian architecture, awash in decorative flourishes, ornate carvings, turrets and gables. (There are over 1600 heritage-designated homes!)

I whiled away half a day feasting on the town’s Victorian ‘Queens” on a self-guided tour, which climaxes with the Carson Mansion – one of the USA’s most photographed Victorian residences. Built in the 1880s for lumber baron, William Carson, it’s the bewitching blend of towers and turrets that seduced me. Over 100 craftsmen were employed to create this masterpiece, which is now a private club. Across the road, the “Pink Lady” is another Victorian dazzler, which was also built for the Carson family.

I booked my Eureka stay with Expedia.co.nz  As the world’s largest online travel company, Expedia brings everything out there, together in one place, on a simple and easy to use website and app. From flights to car hire to accommodation, they cover it all. Kiwi travellers can bundle their flight and car hire bookings, or hotel and car together, for extra sharp savings. On a road trip, having all of your bookings itemised in the Expedia app is a stress-free way to keep on top of your plans. Thread your dream trip together and bag some great deals when booking at www.expedia.co.nz

Planning a grand American adventure? Check-in on the official website for a world of trip inspiration. www.visitusa.com.au

Mike Yardley is our Travel Correspondent on Jack Tame Saturday Mornings.