Southern California is a mecca of mountain biking opportunities ranging from Beginner routes to EPIC all-day rides. So it’s no wonder why so many people visit the area from all around the world! If you’re looking for an experienced mountain biking tour guide for the So Cal area, you’ve found it! Whether you are looking for a quarter day, half day or all day mountain bike adventure, XEN MTB has an option for you.
XEN MTB caters to those who want to enjoy a private and safe as possible mountain biking experience in Southern California. The founder, Mark Warrick, has led well over 1,000 mountain bike rides.
When you ride with XEN MTB, you’re riding with a guide that has years of experience guiding thousands of adventure seekers on all the local trails in Southern California. Mark is a route designer and Expert navigator, able to piece together custom ride plans based on personal observations – not just downloaded data you can get from any website out there. XEN MTB won’t take you to “secret” trails or known illegal trails, but you will enjoy routes that most people simply don’t think about.
Enjoy the peace of mind of knowing that all you have to do is follow the leader and absorb your surroundings. And perhaps, by offloading the stress of navigating to a local trail Expert, you may find your moment of “Zen” in the great outdoors.
Your Mountain Biking Tour Guide, Mark Warrick on the San Juan Trail
Customer Testimonials
- Walter M
Mark (the owner) is a very responsible guide who thinks of everything you need to ensure you will have a great ride. He knows how to repair the broken... read more bikes on the road and takes enough breaks when need it. He has a lot of experience riding the trails. 
September 1, 2014Filly Just got done with an awesome ride through Big Laguna and Noble Canyon! Mark was well prepared and super friendly which made the whole day go smoothly. I felt good... read more knowing he had a satellite radio since we were in places without cell service and were riding rough terrain. I was able to focus on having a good time instead of worrying about logistics. Highly recommend! …
June 1, 2019 - Hungry81sailor I had a great day out mountain biking with Mark in Malibu Creek State Park last month. I was in Malibu on holiday and Mark was hugely helpful in... read more providing details for bike hire and providing extra equipment above what I could carry in my suitcase. Mark was also hugely accommodating with me when I asked to make a rearrangement of the date. Thank you! The ride in Malibu Creek State Park was fabulous, saw the MASH filming site and climbed climbed climbed to reach magnificent views. I always felt safe and well looked after. Thanks for a fabulous ride Mark.
October 1, 2017Wendy B Mark has a very vast knowledge of MTB trails. He led 4 of us on a tour at the Laguna Coast Wilderness Park that was beautiful. We had... read more a group of riders with mixed experience levels and he catered it perfectly to accommodate every one as best as possible. The trails he chose
January 1, 2016 - Mark has a very vast knowledge of MTB trails. He led 4 of us on a tour at the Laguna Coast Wilderness Park that was beautiful. We had... read more a group of riders with mixed experience levels and he catered it perfectly to accommodate every one...More
Wendy B
January 18, 2016 Mark was a great guide around the trails of Laguna Coast. I signed up for a half day of riding and he pointed me to the Path bike shop... read more in Tustin to rent a bike. I got a great deal of $42 for a Giant...More 
Martyn W
August 20, 2017 - Roman L A group of us get together once a year to ride for a few days. This year it was SoCal and Mark was our guide. The riders in our group... read more have a veriety of skills and conditioning so Mark picked great trails to fit our riding style. He organized a shuttle at the end of one trail so we could enjoy a really fun downhill. We didn't have to worry about the logistics and had a great time thanks to Mark. Having some pictures and Strava maps after the ride was an extra nice bonus. …
April 1, 2017Roman L A group of us get together once a year to ride for a few days. This year it was SoCal and Mark was our guide. The riders in our group... read more have a veriety of skills and conditioning so Mark picked great trails to fit our riding style. He organized a shuttle at the end of one trail so we could enjoy a really fun downhill. We didn't have to worry about the logistics and had a great time thanks to Mark. Having some pictures and Strava maps after the ride was an extra nice bonus.
March 1, 2017 - Roger G Awsome tour. Mark is a great guide with a lot of experiences. One of my best MTB trip in the USA. He really knows the bes
May 1, 2018 Mark (the owner) is a very responsible guide who thinks of everything you need to ensure you will have a great ride. He knows how to repair the broken... read more bikes on the road and takes enough breaks when need it. He has a lot of...More 
Walter M
August 6, 2015 - Hungry81sailor I had a great day out mountain biking with Mark in Malibu Creek State Park last month. I was in Malibu on holiday and Mark was hugely helpful in... read more providing details for bike hire and providing extra equipment above what I could carry in my suitcase. Mark was also hugely accommodating with me when I asked to make a rearrangement of the date. Thank you! The ride in Malibu Creek State Park was fabulous, saw the MASH filming site and climbed climbed climbed to reach magnificent views. I always felt safe and well looked after. Thanks for a fabulous ride Mark. …
November 1, 2017 I had a great day out mountain biking with Mark in Malibu Creek State Park last month. I was in Malibu on holiday and Mark was hugely helpful in... read more providing details for bike hire and providing extra equipment above what I could carry in my...More 
Hungry81sailor
November 19, 2017 - Papa_J22 Let me begin by saying that Mark is a terrific teacher and advocate for mountain biking. I am a Beginner who came to the area for work and was looking... read more for some stress-relief. If you are looking to get your mind off of the daily grind of your job, then book a ride with Mark. I
May 1, 2016 Awsome tour. Mark is a great guide with a lot of experiences. One of my best MTB trip in the USA. He really knows the best trails! Roger G
May 12, 2018 - gnat86 Just got done with an awesome ride through Big Laguna and Noble Canyon! Mark was well prepared and super friendly which made the whole day go smoothly. I felt good... read more knowing he had a satellite radio since we were in places without cell service and...More
June 10, 2019 A group of us get together once a year to ride for a few days. This year it was SoCal and Mark was our guide. The riders in our group... read more have a veriety of skills and conditioning so Mark picked great trails to fit our...More 
Roman L
April 8, 2017 - Martyn W Mark was a great guide around the trails of Laguna Coast. I signed up for a half day of riding and he pointed me to the Path bike shop... read more in Tustin to rent a bike. I got a great deal of $42 for a Giant XTC 29er for the day as long as it was returned by 5pm. The trails were a mix of singletrack and fire roads with some good climbing and rocky descents (not too technical). Mark was really good company and we spent a good deal of the ride chatting. He knows the area really well and is able to find a route appropriate to your level. I'd have liked to have gone a bit further but was constrained by the bike store's opening times. All in all a great day out and would recommend to others. Thanks Mark! …
August 1, 2017 Let me begin by saying that Mark is a terrific teacher and advocate for mountain biking. I am a Beginner who came to the area for work and was looking... read more for some stress-relief. If you are looking to get your mind off of the daily...More 
Papa_J22
May 23, 2016
