diff --git a/Cartesian_kernel/include/CGAL/Cartesian/Segment_3.h b/Cartesian_kernel/include/CGAL/Cartesian/Segment_3.h
index 122626550f4..91dd4e5e598 100644
--- a/Cartesian_kernel/include/CGAL/Cartesian/Segment_3.h
+++ b/Cartesian_kernel/include/CGAL/Cartesian/Segment_3.h
@@ -20,6 +20,8 @@
 #include <CGAL/array.h>
 #include <CGAL/Handle_for.h>
 
+#include <utility>
+
 namespace CGAL {
 
 template < class R_ >
@@ -59,6 +61,11 @@ public:
       return get_pointee_or_identity(base)[1];
   }
 
+  template <std::size_t i>
+  const Point_3& get() const {
+      return get_pointee_or_identity(base)[i];
+  }
+
   const Point_3 &   start() const;
   const Point_3 &   end() const;
 
@@ -210,4 +217,12 @@ collinear_has_on(const typename SegmentC3<R>::Point_3 &p) const
 
 } //namespace CGAL
 
+template < class R_ >
+struct std::tuple_size<CGAL::SegmentC3<R_> > : std::integral_constant<std::size_t, 2> {};
+
+template < class R_, size_t i >
+struct std::tuple_element<i, CGAL::SegmentC3<R_> > {
+  using type = typename R_::Point_3;
+};
+
 #endif // CGAL_CARTESIAN_SEGMENT_3_H
diff --git a/Kernel_23/include/CGAL/Segment_3.h b/Kernel_23/include/CGAL/Segment_3.h
index 61e02d657db..53bd1ac40f1 100644
--- a/Kernel_23/include/CGAL/Segment_3.h
+++ b/Kernel_23/include/CGAL/Segment_3.h
@@ -24,6 +24,8 @@
 #include <CGAL/Bbox_3.h>
 #include <CGAL/Dimension.h>
 
+#include <utility>
+
 namespace CGAL {
 
 template <class R_>
@@ -94,6 +96,11 @@ public:
     return target();
   }
 
+  template <std::size_t i>
+  decltype(auto) get() const {
+      return Rep::template get<i>();
+  }
+
   decltype(auto)
   min BOOST_PREVENT_MACRO_SUBSTITUTION() const {
     typename R_::Less_xyz_3 less_xyz;
@@ -197,4 +204,12 @@ operator>>(std::istream &is, Segment_3<R> &s)
 
 } //namespace CGAL
 
+template < class R_ >
+struct std::tuple_size<CGAL::Segment_3<R_> > : std::integral_constant<std::size_t, 2> {};
+
+template < class R_, size_t i >
+struct std::tuple_element<i, CGAL::Segment_3<R_> > {
+  using type = typename R_::Point_3;
+};
+
 #endif // CGAL_SEGMENT_3_H