diff --git a/docs/environments/continuous-state.md b/docs/environments/continuous-state.md
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diff --git a/docs/environments/discrete-state.md b/docs/environments/discrete-state.md
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diff --git a/docs/environments/image-state.md b/docs/environments/image-state.md
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diff --git a/docs/environments/mujoco.md b/docs/environments/mujoco.md
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@@ -0,0 +1,23 @@
+---
+title: "Mujoco"
+---
+
+# Mujoco
+
+Multi-objective versions of Mujoco environments.
+
+| Env | Obs/Action spaces | Objectives | Description |
+|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------|---------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| [`mo-reacher-v4`](https://mo-gymnasium.farama.org/environments/mo-reacher/)
| Continuous / Discrete | `[target_1, target_2, target_3, target_4]` | Mujoco version of `mo-reacher-v0`, based on `Reacher-v4` [environment](https://gymnasium.farama.org/environments/mujoco/reacher/). |
+| [`mo-hopper-v4`](https://mo-gymnasium.farama.org/environments/mo-hopper/)
| Continuous / Continuous | `[velocity, height, energy]` | Multi-objective version of [Hopper-v4](https://gymnasium.farama.org/environments/mujoco/hopper/) env. |
+| [`mo-halfcheetah-v4`](https://mo-gymnasium.farama.org/environments/mo-halfcheetah/)
| Continuous / Continuous | `[velocity, energy]` | Multi-objective version of [HalfCheetah-v4](https://gymnasium.farama.org/environments/mujoco/half_cheetah/) env. Similar to [Xu et al. 2020](https://github.com/mit-gfx/PGMORL). |
+
+
+```{toctree}
+:hidden:
+:glob:
+:caption: MO-Gymnasium Environments
+
+./mujoco/*
+
+```
diff --git a/docs/index.md b/docs/index.md
index a5069a60..d7ecdd56 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -10,11 +10,21 @@ lastpage:
introduction/install
introduction/api
-environments/all-environments
wrappers/wrappers
examples/morl_baselines
```
+```{toctree}
+:hidden:
+:caption: Environments
+
+environments/discrete-state
+environments/continuous-state
+environments/image-state
+environments/mujoco
+```
+
+
```{toctree}
:hidden:
:caption: Tutorials