What's inside this crater in Madagascar

Madagascar is home to a few craters, and the most notable among them is the **Lake Tritriva Crater**, located near Antsirabe. If you're referring to this specific crater, here's what's typically inside:

1. **Lake Tritriva**:
The crater holds a deep, picturesque volcanic lake. The lake is unique for its seasonal water level changes, which seem to inversely correlate with local rainfall—rising during dry seasons and falling during rainy ones.

2. **Geological Features**:
The walls of the crater are made up of volcanic rock, and the surrounding terrain is rugged, with basalt and other volcanic materials.

3. **Flora and Fauna**:
The surrounding area has sparse vegetation, mostly adapted to the high-altitude and dry conditions. Some local bird species and small animals are often seen nearby.