Embodiments are disclosed of a standup paddle (SUP) board comprising a substantially rectangular shape in outline and having a length dimension that is a whole number multiple of its width dimension. A plurality of link members are disposed at spaced-apart locations along the periphery of the board's deck. Each link member can function, in a first configuration, as a handle for the board; and, in a second configuration, as a linkup for connecting the board in abutting relation to one or more other adjacently located, similarly configured standup paddle boards. With a plurality of such boards connected proximate one another in a desired configuration via such links, an extended upper surface is provided that can serve as a substantially stable platform upon which one or more persons can engage in desired activities.

A watercraft board traction system includes a base layer having a upper surface and a bottom surface, the bottom surface of the base layer including an adhesive layer configured to adhesively attach to the board. The system further includes a traction layer having an upper surface and a bottom surface, the upper surface of the traction layer having a plurality of traction elements. The system further includes a fastener system having a bottom portion coupled with the upper surface of the base layer and a top portion coupled with the bottom surface of the traction layer, the fastener system being configured to releasably fasten the traction layer to the base layer when the base layer is adhesively attached to the board, the fastener system enabling repositioning and/or reorienting the traction layer relative to the base layer when the traction layer is fastened to the base layer.

A watercraft board traction system includes a base layer having a upper surface and a bottom surface, the bottom surface of the base layer including an adhesive layer configured to adhesively attach to the board. The system further includes a traction layer having an upper surface and a bottom surface, the upper surface of the traction layer having a plurality of traction elements. The system further includes a fastener system having a bottom portion coupled with the upper surface of the base layer and a top portion coupled with the bottom surface of the traction layer, the fastener system being configured to releasably fasten the traction layer to the base layer when the base layer is adhesively attached to the board, the fastener system enabling repositioning and/or reorienting the traction layer relative to the base layer when the traction layer is fastened to the base layer.

A sail board foot repositioning system is provided. The sail board repositioning system has a plate assembly rotatably attached to the sail board top surface. The plate assembly provides foot attachment means and means for changing the orientation of the plate for a resulting desired foot orientation.

A sail board foot repositioning system is provided. The sail board repositioning system has a plate assembly rotatably attached to the sail board top surface. The plate assembly provides foot attachment means and means for changing the orientation of the plate for a resulting desired foot orientation.

A break resistant composite stringer system for a sports board includes an elongated stringer body. An upper U channel is fibrous and includes an upper U channel right flange and an upper U channel left flange. The upper U channel right flange is vertically oriented and the upper U channel left flange is vertically oriented. An inside surface of the upper U channel is bonded to the stringer right surface, the stringer top surface, and the stringer left surface. A lower U channel is fibrous and includes a lower U channel right flange and a lower U channel left flange. The lower U channel right flange is vertically oriented and the lower U channel left flange is vertically oriented. An inside surface of the lower U channel is bonded to the stringer right surface, the stringer bottom surface, and the stringer left surface.

A package delivery system includes a package delivery computing system having a server with a processor and a server storage device. Driver cell phones includes a first driver cell phone. The first driver cell phone has a driver cell phone camera, a GPS receiver and a wireless data transceiver. The GPS receiver receives a first driver GPS location and transmits it to the server. A machine readable code is affixed to a first package that corresponds to a package #1 ID, a package #1 destination latitude GPS coordinate, a package #1 destination longitude GPS coordinate, and a package #1 size unit on the server storage device. The driver cell phone is configured to read the machine readable code via the driver cell phone camera and the driver cell phone communicates with the server over a network.

Systems and methods for implementing a device for surfing, such as in water sports in which a user is on a top side of the device, are described herein. One aspect of the subject matter described in the disclosure is a surfboard. The surfboard nay include a top side, a bottom side, a tail section, and a front section. The tail section may be divided into three sections by transverse cuts with a length that is smaller than the length of the surfboard. The tail section may include two outer sections, and a middle-inner section. The middle-inner section may include a greater flexibility relative to the two outer sections.

Systems and methods for implementing a device for surfing, such as in water sports in which a user is on a top side of the device, are described herein. One aspect of the subject matter described in the disclosure is a surfboard. The surfboard nay include a top side, a bottom side, a tail section, and a front section. The tail section may be divided into three sections by transverse cuts with a length that is smaller than the length of the surfboard. The tail section may include two outer sections, and a middle-inner section. The middle-inner section may include a greater flexibility relative to the two outer sections.

A board suitable for riding a wave is described. The board includes interconnected deck and bottom reinforcing zones.