Here is a concise summary of the provided transcript:
**Title:** Unboxing and Playing with a Mermaid Doll, followed by a Mermaid Swimming Lesson
**Summary:**
* The video begins with an unboxing of a mermaid doll that can transform from a human to a mermaid form.
* The host plays with the doll, demonstrating its features.
* The video then shifts to a swimming pool, where a professional mermaid instructor, Meri, teaches a mermaid swimming lesson to a child (Matilde).
* Matilde learns to use a monofin to swim like a mermaid, with guidance on breathing, movement, and technique.
* The instructor provides tips and encouragement as Matilde practices her new skills.
* The video concludes with:
+ Advice from Meri for those interested in trying mermaid swimming (requiring a basic swimming ability).
+ A call to action to like, subscribe, and await the next video on the channel.
Here are the extracted key facts, each with a number and in short sentences, excluding opinions:
1. **Video Structure**: The video is divided into two parts.
2. **Product Featured**: A mermaid doll with removable tail and feet is showcased.
3.. **Doll's Features**:
* The tail can be attached and detached.
* The doll has feet for use as a normal doll.
* The neck can turn.
4. **Mechanism for Tail Attachment**:
* A hook is used to attach the tail to the doll.
5. **Battery Requirement**: The doll requires 3 batteries to function.
6. **Professional Swimming Pool Session**:
* The session takes place in a professional swimming pool.
* A professional, Meri, who deals with aquatic activities, is present.
7. **Monofin Equipment**:
* A monofin (single fin) is used for the "mermaid movement".
* It allows for a classic mermaid-like swimming motion.
8. **Swimming Instructions Given**:
* Instructions on how to swim like a mermaid using the monofin are provided.
* Techniques include leg positioning, spinning, and breathing.
9. **Participants**:
* Matilde and others participate in the swimming and mermaid activities.
10. **Advice for Viewers**:
* Meri advises that anyone (children, girls, adults) can try swimming with a mermaid tail.
* A basic swimming ability is recommended for using a monofin.