diff --git a/PureGym.App/Fullness.fs b/PureGym.App/Fullness.fs
index ab34bf5..bbe8af6 100644
--- a/PureGym.App/Fullness.fs
+++ b/PureGym.App/Fullness.fs
@@ -51,7 +51,6 @@ module Fullness =
             let! client = Dto.make args.Creds
             let! id = GymSelector.canonicalId client args.Gym
             let! attendance = client.GetGymAttendance id
-            let attendance = failwith ""
 
             if args.Terse then
                 System.Console.WriteLine attendance.TotalPeopleInGym
diff --git a/PureGym.App/MemberActivity.fs b/PureGym.App/MemberActivity.fs
index c9803b1..f69d03e 100644
--- a/PureGym.App/MemberActivity.fs
+++ b/PureGym.App/MemberActivity.fs
@@ -33,6 +33,7 @@ module MemberActivity =
         task {
             let! client = Dto.make args.Creds
             let! activity = client.GetMemberActivity ()
+            let activity = activity.ToMemberActivity ()
             System.Console.WriteLine (string<MemberActivityThisMonth> activity)
             return 0
         }
diff --git a/PureGym/Client.fs b/PureGym/Client.fs
index db57c37..a6f9ea3 100644
--- a/PureGym/Client.fs
+++ b/PureGym/Client.fs
@@ -26,7 +26,7 @@ type IPureGymApi =
 
     /// Get information about the activities logged against the currently authenticated PureGym human.
     [<Get "v1/member/activity">]
-    abstract GetMemberActivity : unit -> Task<MemberActivityThisMonth>
+    abstract GetMemberActivity : unit -> Task<MemberActivityDto>
 
     /// Get information about the individual visits to all PureGyms the currently-authenticated PureGym human has made.
     [<Get "v2/gymSessions/member">]
diff --git a/PureGym/Dto.fs b/PureGym/Dto.fs
index 4e63926..f204c78 100644
--- a/PureGym/Dto.fs
+++ b/PureGym/Dto.fs
@@ -3,6 +3,7 @@ namespace PureGym
 open System
 open System.Text.Json.Serialization
 
+/// Describes the opening hours of a given gym.
 [<WoofWare.Myriad.Plugins.JsonParse>]
 type GymOpeningHours =
     {
diff --git a/PureGym/SurfaceBaseline.txt b/PureGym/SurfaceBaseline.txt
index 1701c9a..b54b704 100644
--- a/PureGym/SurfaceBaseline.txt
+++ b/PureGym/SurfaceBaseline.txt
@@ -155,8 +155,8 @@ PureGym.IPureGymApi.GetGym [method]: int -> PureGym.Gym System.Threading.Tasks.T
 PureGym.IPureGymApi.GetGymAttendance [method]: int -> PureGym.GymAttendance System.Threading.Tasks.Task
 PureGym.IPureGymApi.GetGyms [method]: unit -> PureGym.Gym list System.Threading.Tasks.Task
 PureGym.IPureGymApi.GetMember [method]: unit -> PureGym.Member System.Threading.Tasks.Task
-PureGym.IPureGymApi.GetMemberActivity [method]: unit -> string System.Threading.Tasks.Task
-PureGym.IPureGymApi.GetSessions [method]: System.DateTime -> System.DateTime -> string System.Threading.Tasks.Task
+PureGym.IPureGymApi.GetMemberActivity [method]: unit -> PureGym.MemberActivityDto System.Threading.Tasks.Task
+PureGym.IPureGymApi.GetSessions [method]: System.DateTime -> System.DateTime -> PureGym.Sessions System.Threading.Tasks.Task
 PureGym.Member inherit obj, implements PureGym.Member System.IEquatable, System.Collections.IStructuralEquatable, PureGym.Member System.IComparable, System.IComparable, System.Collections.IStructuralComparable
 PureGym.Member..ctor [constructor]: (int, string, string, string, int, string, string, string, System.DateOnly, string, string, string, int, int, int)
 PureGym.Member.CompoundMemberId [property]: [read-only] string