diff --git a/back_end/src/main/java/hackathon/FrisbYEE/rest/SessionResource.java b/back_end/src/main/java/hackathon/FrisbYEE/rest/SessionResource.java
index e25b2d5..172d108 100644
--- a/back_end/src/main/java/hackathon/FrisbYEE/rest/SessionResource.java
+++ b/back_end/src/main/java/hackathon/FrisbYEE/rest/SessionResource.java
@@ -44,7 +44,7 @@ public class SessionResource {
     @PreAuthorize("hasRole('coach')")
     public ResponseEntity<?> create(@RequestBody SessionDTO dto) {
         try {
-            if(sessionDAO.findById(dto.getId()).isPresent()) {
+            if (sessionDAO.findById(dto.getId()).isPresent()) {
                 return ResponseEntity.status(HttpStatus.OK).body("Session with ID " + dto.getId() + " already exists.");
 
             }
@@ -114,19 +114,41 @@ public class SessionResource {
         return ResponseEntity.noContent().build();
     }
 
-    //Commented because not finished
-
-    /*@GetMapping("/activities/add")
-    @PreAuthorize("hasRole('coach') or hasRole('admin')")
-    public ResponseEntity<?> addActivity(@RequestBody ActiviteDTO dto) {
+    @GetMapping("/{id}/activities")
+    @PreAuthorize("hasRole('coach') or hasRole('athlete')")
+    public ResponseEntity<?> getActivitiesBySessionId(@PathVariable Integer id) {
         try {
-            Activite activite = maptoEntity(dto);
-            activiteDAO.save(activite);
-            return ResponseEntity.status(HttpStatus.CREATED).body(maptoDTO(activite));
+            Session session = sessionDAO.findById(id).orElseThrow();
+            List<Activite> activites = session.getActivites();
+            List<ActiviteDTO> activiteDTOs = new ArrayList<>();
+            for (Activite activite : activites) {
+                ActiviteDTO dto = new ActiviteDTO();
+                dto.setId(activite.getId());
+                dto.setName(activite.getName());
+                activiteDTOs.add(dto);
+            }
+            return ResponseEntity.ok(activiteDTOs);
         } catch (Exception ex) {
-            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(ex.getMessage());
+            return ResponseEntity.status(HttpStatus.NOT_FOUND).body(ex.getMessage());
         }
-    }*/
+    }
+
+    // Commented because not finished
+
+    /*
+     * @GetMapping("/activities/add")
+     * 
+     * @PreAuthorize("hasRole('coach') or hasRole('admin')")
+     * public ResponseEntity<?> addActivity(@RequestBody ActiviteDTO dto) {
+     * try {
+     * Activite activite = maptoEntity(dto);
+     * activiteDAO.save(activite);
+     * return ResponseEntity.status(HttpStatus.CREATED).body(maptoDTO(activite));
+     * } catch (Exception ex) {
+     * return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(ex.getMessage());
+     * }
+     * }
+     */
 
     private SessionDTO maptoDTO(Session s) {
         SessionDTO dto = new SessionDTO();
@@ -161,13 +183,13 @@ public class SessionResource {
 
     private Session maptoEntity(SessionDTO dto) {
         Session session = new Session();
-        System.out.println("ID "+ session.getId());
+        System.out.println("ID " + session.getId());
         session.setName(dto.getName());
         session.setIsRecurrent(dto.getIsRecurrent());
         session.setCreneau(dto.getCreneau());
         session.setDuree(dto.getDuree());
         session.setGroupe(dto.getGroupe());
-        
+
         return session;
     }
 }
diff --git a/front_end/src/components/ressourceList.tsx b/front_end/src/components/ressourceList.tsx
index a11730f..29a33d7 100644
--- a/front_end/src/components/ressourceList.tsx
+++ b/front_end/src/components/ressourceList.tsx
@@ -4,17 +4,12 @@ import ObjectSession from "./object/session";
 import {calculStatsAthlete, niveauAlerte} from "../utils/athleteUtils";
 import {calculTempsDeJeuParLigne} from "../utils/ligneUtils";
 import ObjectActivite from "./object/activite";
-
-
 type AthleteListProps = { athletes: Athlete[], sessions: Session[]};
 type ActiviteListProps = { activites: Activite[] };
 type CoachListProps = { coachs: Coach[] };
 type SessionListProps = { sessions: Session[]};
 type LigneListProps = { lignes: Ligne[], tempsDeJeuParLigne: Map<number, number> };
 
-
-
-
 function AthleteList({ athletes, sessions }: AthleteListProps) {
     const [dateDebut, setDateDebut] = React.useState(new Date());
     const [dateFin, setDateFin] = React.useState(new Date());