Great summer tune, just a simple riff over and over:
e|-10-8-7-8-----------(8)----------------------------------------------------|
B|----------8-10-----------------8-10----------------------------------------|
G|---------------9-10-------9-10------9-7------------------------------------|
D|----------------------------------------9-7--------------------------------|
A|---------------------------------------------------------------------------|
E|---------------------------------------------------------------------------|
or
e|---------------------------------------------------------------------------|
B|---------------------------------------------------------------------------|
G|-7-5-4-5---------(5)-------------------------------------------------------|
D|---------5-7------------------5-7------------------------------------------|
A|-------------7-8----------7-8-----7-5--------------------------------------|
E|--------------------------------------7-5----------------------------------|