You must be 18 or older to attend. Guests are usually women in their 20s–40s, but all women who are ready to move, grow, and recharge are welcome.

We’ll set up a friendly WhatsApp group before the retreat so you can connect with other participants and get to know our Sisters, who will lead the retreat and be with you every step of the way. 

Koh Samui Airport (USM), Thailand.

A tropical island paradise with white beaches, lush jungle, turquoise waters, and coconut palms everywhere. Just a one-hour flight from Bangkok, it blends Thai charm with modern comfort.

Airport transfers are included. We’ll guide you on arrival so it’s stress-free.

Most guests can stay in Thailand visa-free for up to 60 days. Just complete a quick digital arrival card within three days before your flight. Check with your local authorities to confirm.

Our training is designed for women at every level, whether you’re just starting out, getting back into fitness, or ready to push your performance further, you’ll find the right level of challenge and support. All physical activity is scalable and will be adjusted by our experienced coaches in order to best support your strength, endurance, and confidence.

All retreats include training sessions, accommodation, most meals, workshops, scheduled activities, airport transfers, and access to in-house wellness experiences. For full details, please refer to the inclusions listed for each specific retreat.

Meals, drinks, transport, or activities outside the retreat schedule are at your own cost.

Absolutely! You’ll have some free time throughout the week to relax, enjoy the island, or explore with optional curated activities. There is also the option to stay in Koh Samui after the retreat. 

Not at all! Join as much or as little as you like, though we encourage participation for the fullest experience.

Yes. The insurance should cover exercise, martial arts and unforeseen situations such as flight or retreat cancellations.

• A 25% non-refundable deposit is required at booking (unless the retreat is cancelled by Sisters of Siam).
  
• Deposits and all payments exclude VAT/GST. Tax will be calculated and included in the final invoice.
  
• Remaining balance is due 75 days before retreat start. (15th December 2025)
  
• Bookings made after this cutoff must be paid in full at booking.
  

• Retreats will only run if the minimum number of participants is reached 2 months before the start date.
  
• If not met, all payments (including deposit) will be refunded in full.
  

• Travel insurance is required to protect your booking. You never know what may happen, and having coverage ensures peace of mind for your journey.
  
• Sisters of Siam cannot reimburse flight or travel costs outside of retreat inclusions.

Guest Cancellations

• 75+ days before start: 100% refund (excluding deposit)
  
• 45–74 days: 50% refund (excluding deposit)
  
• 0–44 days: No refund
  
• Pair bookings: if one cancels, the other can convert to solo (by paying the difference) or invite a replacement.

• If we cancel: full refund of all payments (excluding travel costs).
  
• If cancelled due to force majeure (natural disaster, pandemics, government restrictions, etc.), only recoverable retreat fees will be refunded/credited. Travel costs are not covered.

• Must be 18+ to attend.
  
• Guests are responsible for flights, visas, passports, and insurance.
  
• Participation is at your own risk. Sisters of Siam is not liable for injury, illness, or costs outside retreat inclusions.
  
• Respectful conduct is required; disruptive or unsafe behaviour may result in removal at your own cost.
  

To secure your spot, a 25% non-refundable deposit (unless the retreat is cancelled by Sisters of Siam) is required at booking. The remaining balance is due 75 days before the retreat start date. We’ll be in touch to guide you and provide payment links at the appropriate times.

If you book less than two months before the retreat starts, full payment is required immediately.

Please note that all payments are processed in Thai Baht (THB) and do not include VAT/GST. 

• Secure your spot: Pay your deposit via the booking link. Your place is confirmed once we receive it.
  
• Remaining balance: Due two months before the retreat. We’ll send reminders and payment instructions.
  
• Later bookings: If you book less than two months before the retreat, full payment is required at the time booking.