New Diving Regulations in Thailand: What to Know

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New Diving Regulations in Thailand: What to Know

As of May 2025, Thailand has implemented stricter rules for scuba diving. These new regulations aim to preserve marine ecosystems and ensure responsible tourism. They apply to all divers and dive operators, both local and international.

Thailand's seabed is rich in marine life

What’s new in the 2025 diving rules?

Authorities have identified high pressure on marine parks and sensitive areas. To protect these zones, a range of protective measures have been introduced and are now mandatory across the country.


Summary Table of the New Measures

MeasureDescription
Restricted areasSome dive sites are now closed or limited
Daily diver limitsCaps on the number of divers per day in marine parks
Mandatory supervisionCertified guides must accompany every dive
Regulated equipmentGloves, nets, or harmful tools are strictly prohibited
Stricter penaltiesHigher fines and potential bans for rule violations
Operator certificationMandatory training on eco-friendly practices for all dive operators

Why such regulations?

The Thai government aims to halt the environmental degradation caused by over-tourism and careless diving practices. Coral reefs, seagrass beds, and aquatic species are under threat. These measures strive to balance tourism with marine conservation.


What divers need to know

  • Book early: Daily limits can fill up quickly.
  • Check site access: Some islands or bays are temporarily closed.
  • Respect marine life: No touching, feeding, or collecting allowed.
  • Choose certified operators: Ensures safety and compliance with rules.

FAQ – Diving Rules in Thailand

Are all diving sites affected?

Not all. Regulations focus on marine national parks and fragile zones, but others may be included based on ecological risk.

Can experienced divers dive without a guide?

No. A certified guide is mandatory regardless of your experience level.

What are the penalties for non-compliance?

Fines, potential bans, and legal action for repeated violations.

Are these measures permanent?

Yes. However, site closures may vary by season and environmental conditions.


Thailand and ecology: an uneasy dialogue

Thailand is taking strong steps to protect its marine heritage. These new rules ensure that scuba diving remains a sustainable activity, preserving underwater life for future generations.
Awareness of the need to respect the environment in Thailand is gradually being raised, but unfortunately there is still a long way to go before everyone is aware.


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New Diving Regulations in Thailand: What to Know