Fitness Pro


With busy Bay Area lifestyles, fitness, health and nutrition often take a backseat. Bring your overall health to the forefront with personal one-on-one coaching with Menlo Swim and Sport Fitness Pro Semisi Siu. Work towards your personal health goals and together create a customized fitness plan that will drive results.

Working with our Fitness Pro helps keep you on track and accountable towards your goals. In addition to coaching towards your plan, Semisi also teaches core work, strength & functional exercises, speed, and agility, with all movement geared towards your ability and fitness plan. He also provides nutritional advice for recovery and everyday diet. Everything starts with a fitness assessment and consultation.

Who benefits from a Fitness Pro session?
Clients looking for a personalized experience away from the chaos of mass-market gyms
Athletes in recovery after injury or surgery
Fitness enthusiasts looking to boost their current program or move to the next level
Busy professionals searching for the most cost-effective, time efficient program


Fitness Pro appointments are available Monday – Friday, and Saturday by appointment. Please click on the Register Now button to view available times.


30-min private $45
30-min private, 6-pack $245
60-min private $80
60-min private, 6-pack $435
60-min, semi-private 4:1 $35/participant
60-min, semi-private 4:1, 6-pack $190/participant


Lessons are 30 or 60 minutes in length.

All lessons need to be booked 48 hours in advanced. Any changes to the schedule must be made 48 hours in advance to avoid charges.

No makeups.

Payment is due upon verbal confirmation and prior to lesson attendance. Credit card information provided at the time of registration will be processed upon registration. In the case of declined charges, you will be invoiced for the amount due plus a fee of $25.00.

Credit card payments will appear as a charge from Menlo Swim and Sport.

All lesson payments are final and non-refundable.

All checks should be made payable to: Menlo Swim and Sport

Meet the Pro



Semisi Siu

Semisi is passionate about fitness and nutrition, and feels that they should be implemented as a lifestyle as opposed to it being a chore. He has been involved in athletics and fitness since he was a pre-teen, growing up in Aotearoa (New Zealand), participating in sports like Rugby, Aussie Rules, Cricket, Grass Hockey and Track & Field.

Semisi is native to the South Pacific Islands of Tonga, but grew up in Auckland, New Zealand and moved to California in 1995. In 2001 Semisi earned NASM, ACE & Apex nutrition certifications and worked as a Trainer Fit Pro for 24 hour Fitness in Scottsdale & Phoenix, Arizona. He returned to Menlo Park in 2008, and joined Menlo Swim and Sport as a Menlo Swim School Instructor, Camp Menlo Lead Counselor and Fitness Coach for Menlo Fit Boot Camp, which he truly enjoys – from helping, teaching, and coaching community members, to practicing what he preaches by taking the Wednesday morning 6am “Tabata” class. Semisi is also very proud of his Sunday Trail Runners group and welcomes any running levels – “the most challenging part is showing up!”

Semisi’s personality, passion, focus, professionalism and high octane energy will get you motivated, inspired, dancing, laughing, sweating & hungry for another tough, but fun filled class.
Specialties include: Performance Enhancement Specialist, Strength & Conditioning, Stretch & Flexibility Coach, TRX-Suspension trainer & DVRT Sandbag training.