Buoyancy above a sandy bottom
Sand is the best place to notice what your fins are doing.
Safety and training
General field notes, not a dive plan. Stay within your training, follow local site rules and the operator’s briefing.
Field observation
Hover at a comfortable height and watch the shadow or a fixed point to see whether you sink or rise. Small, calm breaths reveal changes more clearly than large hand movements.
A practical approach
Make weighting adjustments only with appropriate supervision and a safe procedure; avoid kneeling on living bottom even during practice.
Dive-day checklist
Before you go
- Check local conditions and access rules
- Agree limits and the exit with your buddy
- Stop or change the plan if conditions differ
General guidance only. Follow your training, the dive operator’s procedures, and each manufacturer’s current instructions.
Ask the dive guide
Personal guidance for your next dive
Describe a dive scenario or an equipment-care question. The guide answers in your language and points you to relevant journal articles.
General educational guidance only. It is not medical advice, emergency instruction or a replacement for training, certification, manufacturer instructions, your operator's briefing or your dive plan.