You would have to add Pages to the Menu displayed at the front-end. To do so, follow the given steps:
- Navigate to wp-admin > Appearance > Menus
- Now click on View All tab from the Pages widget and select BuddyPress pages such as Activity, Groups, Members, etc. Then click Add to Menu.
From here you can also add Pages to the front-end Menu from other plugins such as WooCommerce’s Shop, Cart and Checkout Pages.
After adding to Menu, BuddyPress pages should be accessible from the front-end.